Database Develop

Car Bluetooth

Hey guys,
I've got a Kenwood KDC-BT945U car stereo and I'm curious what other people's experiences are using the bluetooth for music. For all of you using a bluetooth receiver in the car, when you play music, does the deck display the Song/Artist/Album/etc.? Mine plays fine. I can pause/play, skip forward/back, etc. The only problem is when it comes to actually displaying the information on the car stereo.
Any similar experiences?
Ps. Besides this problem, the deck is a great complement to the phone. If I can get this problem solved, I can stop using the USB altogether.

I was going to post a similar thread about my issues with the KDC-BT945U. Thanks for staring it. Are you running a custom ROM?
Music for me shows no tag info. My main issue is that foryo is a nightmare when it comes to this deck. Both the deck and the nexus has major pairing issues using froyo. I have not tried 2.1 stock or Cyan's 5.0.7, I assume they work fine. I am no expert, but I think it's the new Radio in froyo causing the problem.
Surprisingly, Paul's desire ROM and this deck work very well for me.
Checking the website, there is a Bluetooth compatibility section. They do not list the nexus. I'm hoping for a firmware update for the deck.
I do have a 30gb iPod in the glove box hooked up via the rear USB and it does display track info on the deck.

Yeah. In my infinite wisdom, I bought a ZuneHD rather than an iPod touch. . . The only Kenwood stereo I could find that was compatible with the Zune was like twice the price. Not exactly doable when I'm 28 days away from being a daddy. lol That said, I'm just using a jump drive for the USB. That's been working flawlessly, tags included. If I can figure out how to get the phone to transmit tag info, then I can drop the need to carry an mp3 player (or have a jump drive hooked up) altogether. I love listening to music from the phone while using the navigation, for the sheer fact that it cuts the music off to make announcements. . .just need to get it working right.
Edit. Btw, I an running eViL's latest FroYo. Noir Tri.

Mi|enko said:
Edit. Btw, I an running eViL's latest FroYo. Noir Tri.
Click to expand...
Click to collapse
Can you tell me what firmware your deck is running? Mines 3.11
Also can you tell me what Radio you are running? Mines 32.36.00.28U_4.06.00.12_7
Thank you

verboten said:
Can you tell me what firmware your deck is running? Mines 3.11
Also can you tell me what Radio you are running? Mines 32.36.00.28U_4.06.00.12_7
Thank you
Click to expand...
Click to collapse
Same as you. Latest FroYo radio and 3.11 on the deck. Have since wiped and flashed Evil's latest Noir IV (FRF83 based) and still the same results. I have a 16 gig jump drive in there, so I have plenty of music. . . it just kind of sucks for the navigation piece. Phone calls are fine, because they'll interrupt any of the inputs. . . nav doesn't have that luxury. :-\

Thank you for the reply,
I have switch over to Kang-o-rama 0.9 Final (Froyo FRF83). My BT registering is a bit better, but nothing like Paul's R22 desire ROM was. With Paul's ROM, I was able to just keep my phone in my pocket at all times and when I started my car, as long as BT was turned on, my phone and deck synced every time. Now i'm lucky if it syncs at all. I have to constantly re-pair with the phone, and even that is very flaky.
Also, During audio, only 'BT audio' is displayed, no tags.

verboten said:
Thank you for the reply,
I have switch over to Kang-o-rama 0.9 Final (Froyo FRF83). My BT registering is a bit better, but nothing like Paul's R22 desire ROM was. With Paul's ROM, I was able to just keep my phone in my pocket at all times and when I started my car, as long as BT was turned on, my phone and deck synced every time. Now i'm lucky if it syncs at all. I have to constantly re-pair with the phone, and even that is very flaky.
Also, During audio, only 'BT audio' is displayed, no tags.
Click to expand...
Click to collapse
Did the desire rom display tag info? I have to repair all the time too. . .might be worth switching just for that.

Mi|enko said:
Did the desire rom display tag info? I have to repair all the time too. . .might be worth switching just for that.
Click to expand...
Click to collapse
Unfortunately, the desire ROM does not display tag info.

Unfortunately I'm pretty sure that sending the tag info for songs over Bluetooth isn't currently possible. It's a limitation in Bluetooth though, not your head unit.
I have a stock Nexus One and a Kenwood KDC-X994 and after trying unsuccessfully to figure out how to get my song info to show on the head unit I contacted Kenwood about it. They informed me it wasn't currently possible to do this via Bluetooth and that it was Bluetooth that had the limitation, not my head unit.
On a side note, ever since upgrading to Froyo (stock) my phone will only stream music via BT to my head unit with the stock music app, and this is very aggravating. Seems to be an issue with Froyo from seeing other user posts about this topic. I sincerely hope Google fixes this ASAP!

ranphi said:
Unfortunately I'm pretty sure that sending the tag info for songs over Bluetooth isn't currently possible. It's a limitation in Bluetooth though, not your head unit.
Click to expand...
Click to collapse
not true, my blackberry storm 2 sends all the song info to my kenwood kdc-bt945u. so the problem is in the phone software not the hu or bluetooth
where are we at on this? im curious as i should have an eris by friday and want to know how compatible it will be with my head unit

Huh. Interesting. I guess Kenwood was wrong, then.
NFrank89 said:
not true, my blackberry storm 2 sends all the song info to my kenwood kdc-bt945u. so the problem is in the phone software not the hu or bluetooth
where are we at on this? im curious as i should have an eris by friday and want to know how compatible it will be with my head unit
Click to expand...
Click to collapse

kenwood kind of pisses me off, i dealt with them a lot after i purchased the hd radio unit for the 945u. i was trying to find out why you cannot access the equalizer or any audio settings in hd radio mode (extremely annoying) he said you just cant. i wanted a more detailed explaination and he just made some bs up to get me off the phone. but yeah, just so you guys know, if you get the hd radio for you head unit you wont be able to adjust the terb/bass or anything on the hd radio src. all you get it the direct signal.
but does anyone know if this song info problem has been fixed? in an update or anything?

Bluetooth Issue

So I paired the One with my QED uPlay at home and I'm having issues. The phone has to literally be 30cm away from the receiver or the audio will start getting distorted until it eventually cuts off. I have two uPlays, issue exists on both so its not tbe receiver. Also my iPhone 4s has no issues either. I was hoping the One had better audio than the iPhone since it has aptx, but its quite the opposite. Has anyone tried bluetooth music streaming? Is it just a faulty phone?

giorgoxxi said:
So I paired the One with my QED uPlay at home and I'm having issues. The phone has to literally be 30cm away from the receiver or the audio will start getting distorted until it eventually cuts off. I have two uPlays, issue exists on both so its not tbe receiver. Also my iPhone 4s has no issues either. I was hoping the One had better audio than the iPhone since it has aptx, but its quite the opposite. Has anyone tried bluetooth music streaming? Is it just a faulty phone?
Click to expand...
Click to collapse
Bluetooth and Wi-Fi both use the 2.4GHz channel. Asus had issues with the Prime because of its all-aluminum design where they had to greatly amplify the Wi-Fi signal and use diversity antennas to get through it. HTC uses the latter on the One. When used together, the Wi-Fi signal can overpower and interfere with the BT signal. Try turning off Wi-Fi and see if your connection quality changes. You're the first one to mention a BT issue so it could be unique to your device. Time will tell.

I have had a problem with bt connecting to my car (audi a1) I can hear the call but the other end cannot hear me. Going to delete connection and try again tomorrow.

Thanks for the replies. I switched off WIFI, re-paired the device and bluetooth started working perfectly, so it makes sense it was interference. Strange thing is I turned WIFI back on and bluetooth was still working fine. I'll do further tests in my car tomorrow see how it goes. If I'm not convinced I'll just get the phone replaced.

I have also had issues with bluetooth paired to my hands free car kit. Issues have surfaced when streaming music and also when making audio calls via bluetooth.
Sent from my HTC One using xda premium

The One X had a similar issue:
http://forum.xda-developers.com/showthread.php?t=1688538
It could be that when I was first trying the WIFI antenna was stuck on high power, which caused the interference, but when I reset the WIFI it reduced its power and no longer interfered with the BT. I have changed the WIFI at home to run at 5 GHZ, but work still runs on 2.4.

giorgoxxi said:
So I paired the One with my QED uPlay at home and I'm having issues. The phone has to literally be 30cm away from the receiver or the audio will start getting distorted until it eventually cuts off. I have two uPlays, issue exists on both so its not tbe receiver. Also my iPhone 4s has no issues either. I was hoping the One had better audio than the iPhone since it has aptx, but its quite the opposite. Has anyone tried bluetooth music streaming? Is it just a faulty phone?
Click to expand...
Click to collapse
What version you are using. I have update to latet ROM:1.29.709.4 and the issue is fixed. :laugh:

cobbcobbdavid said:
What version you are using. I have update to latet ROM:1.29.709.4 and the issue is fixed. :laugh:
Click to expand...
Click to collapse
I am running 1.28.401.7. How did you update to the latest ROM? I don't want to unlock my bootloader in case I need to return it.
Did you used to have the same exact issue in the previous ROM?

giorgoxxi said:
I am running 1.28.401.7. How did you update to the latest ROM? I don't want to unlock my bootloader in case I need to return it.
Did you used to have the same exact issue in the previous ROM?
Click to expand...
Click to collapse
I have the same version on mine 1.28.401.7. However I also do not want to update in case of needing to return it.

djayyy said:
I have the same version on mine 1.28.401.7. However I also do not want to update in case of needing to return it.
Click to expand...
Click to collapse
Apparently 1.29.709.4 has been officially released in Taiwan by HTC, so it shouldn't be long before the update arrives to the rest of us (hopefully).

got the same issue...some times I got no lags in audio streaming, but sometimes they are there...until it (maybe) will be fixed I'm using a widget, my cousin has coded for me yesterday . Quite simple solution. If I press the button, wifi turns off and bt turns on...works fine for me, so far

[FIX] Possilbe A2DP Streaming Workaround

Stuttering and skipping streaming are very known issues on many jelly bean devices.
The most times when I listen to music in my car, i do this via bluetooth. So it is really annoying me and some day, I will have an accident, while I am fumbling with my HTC One.
I replaced the audio.a2dp.default.so with one of the Nexus 4 (4.2.2) and it just worked well, but only the first time using bluetooth streaming after rebooting the device.
I changed some settings in audio.conf and it still stutters.
But then, i deactived wifi while the device was streaming and all stuttering and skipping was gone.
So... can someone just confirm, whether the a2dp streaming works correctly, when wifi is deactived?
I want to know, whether this is the only point to get this work and I don't want to change my working mess

is nobody interested in this?

I posted this bluetooth issue a while back on this forum, and the issue is corrected by switching off WIFI while using BT. Apparently the new update which is due soon fixes the issue but only one user has confirmed that so far.
Since I use bluetooth streaming on the car mainly, I use Tasker so that when Bluetooth connects, it automatically switches WIFI off (don't need WIFI while driving and saves battery), and when it disconnects it switches it back on. This way the phone just works seamlessly.

Just turning the wifi off and back on again when I connect bluetooth seems to solve this issue for me.

i can confirm - turning wifi on/off fixes it as well for me (until next time I go bluetooth)

I discovered this a couple of weeks ago too. I was about to send it back too. Cant live without podcasts and audible in the car!

I have the problem that i cant even here any sound on my HTC CAR A100 Car Stereo Clip, even if wlan is deactivated With my old sensation everything is okey..

Gleetch said:
I replaced the audio.a2dp.default.so with one of the Nexus 4 (4.2.2) and it just worked well, but only the first time using bluetooth streaming after rebooting the device.
I changed some settings in audio.conf and it still stutters.
But then, i deactived wifi while the device was streaming and all stuttering and skipping was gone.
So... can someone just confirm, whether the a2dp streaming works correctly, when wifi is deactived?
I want to know, whether this is the only point to get this work and I don't want to change my working mess
Click to expand...
Click to collapse
I wonder if this also improves the bitpool value. I'm noticing on my HTC One that bluetooth streaming quality is not very good. From what I've read it has to do with a bitpool value that it set too low, increasing this value is supposed to increase the streaming quality. Highs sound distorted on my phone over BT I can't believe Google/HTC have not addressed this issue.

I have not been able to solve the bluetooth audio streaming issue by turning off WiFi for my car. It works perfectly fine with my Jambox even with WiFi turned on, but in the car, it does not work either way and I'm using software version 1.29.401.13

CelticDiablo said:
I have not been able to solve the bluetooth audio streaming issue by turning off WiFi for my car. It works perfectly fine with my Jambox even with WiFi turned on, but in the car, it does not work either way and I'm using software version 1.29.401.13
Click to expand...
Click to collapse
I'm running 1.29.401.13 too and it looks like it is working nearly perfect for now. I can remember only one time, when it stopped for a second. Mabye the car radio is facing similar problems? Did you try to update the firmware or whatever of you car radio?

Gleetch said:
I'm running 1.29.401.13 too and it looks like it is working nearly perfect for now. I can remember only one time, when it stopped for a second. Mabye the car radio is facing similar problems? Did you try to update the firmware or whatever of you car radio?
Click to expand...
Click to collapse
I've tried researching how to update the firmware of my car's bluetooth, but have had zero luck there as well. It's a 2009 Acura TSX.

TheUntouchable said:
I have the problem that i cant even here any sound on my HTC CAR A100 Car Stereo Clip, even if wlan is deactivated With my old sensation everything is okey..
Click to expand...
Click to collapse
Did you manage to fix the problem with the A100 as mine is exactly the same, works fine on my Sensation but no the HTC One.

have the same problem:
If wifi is ON and bluetooth is ON, eg at streaming youtube over the bluetooth headset, it stutters and has distortions.
If wifi is OFF and stream a video from the sdcard over bluetooth all is fine.
what i find out:
I use the JellyBean from Quarkx for defy.
The build from 7.3.2013 worked
All later builds, with the new wifi driver had this problem.
But its a known bug that JellyBean has a2dp issues, i guess.
This trick, to change audio.a2dp doesnt helped me

I didn't noticed any problem with my phone even when the wifi ON, I'm using the latest radio "4A.16.3250.24_10.38.1150.03L" found in this post: http://forum.xda-developers.com/showthread.php?t=2245615
I don't know if it can help..

Bluetooth car streaming distortion

I am experiencing distortion/popping/cracking while streaming music via bluetooth from my HTC One to my car's headunit. I'm using the default music app and 320kbps mp3s. Never had this issue with my Galaxy SII.
I turned off Beats Audio, but that didn't solve it. I hope a fix can be found for this because I love this phone.
Anyone in the same boat?

RageOfFury said:
I am experiencing distortion/popping/cracking while streaming music via bluetooth from my HTC One to my car's headunit. I'm using the default music app and 320kbps mp3s. Never had this issue with my Galaxy SII.
I turned off Beats Audio, but that didn't solve it. I hope a fix can be found for this because I love this phone.
Anyone in the same boat?
Click to expand...
Click to collapse
I am having the exact same problem. Quite frustrating. Main problem is distortion, particularly in higher frequencies.
I have tested my HTC One on headphones, and there is no problem. The problem is over bluetooth streaming to car head unit. I have used 2 other phones (GSIII and Iphone) on the same head unit without any problem.
I largely play 320kbps spotify files.
If this problem can't be fixed in the short term, I am strongly considering returning the phone as i consider this a serious fault.

Apparently the new update (1.29) fixes the bluetooth issues amongst other things. I've still not received it though

quicksilver92 said:
Apparently the new update (1.29) fixes the bluetooth issues amongst other things. I've still not received it though
Click to expand...
Click to collapse
I can confirm this, 1.29 works great streaming over bluetooth to my car stereo. No distortion at all with beats turned on.

GitAlongLilDoggies said:
I can confirm this, 1.29 works great streaming over bluetooth to my car stereo. No distortion at all with beats turned on.
Click to expand...
Click to collapse
I'm presently running software version 1.29.980.2. So it seems 1.29 dosn't fix the problem?

vortex88 said:
I'm presently running software version 1.29.980.2. So it seems 1.29 dosn't fix the problem?
Click to expand...
Click to collapse
Any other thoughts on what the problem could be?

https://code.google.com/p/android/i...c=ID Type Status Owner Summary Stars&id=39632
That might be the problem, even though that is a 4.2 issue.
It requires a software fix.

vortex88 said:
I'm presently running software version 1.29.980.2. So it seems 1.29 dosn't fix the problem?
Click to expand...
Click to collapse
I am having the same issue with my 2009 Acura TSX and I'm running version 1.29.401.13. I have contacted HTC about this issue and it was escalated to a higher echelon of techs to work on, but so far, no answer or fix.
I have even tried the "fix" located on a german site, still no luck.

Yep... Bluetooth over MyLink sounds awful in the high frequencies... Almost like its only transmitting at 48kbps.

Did anyone every get this issue fixed?
Would flashing to another ROM fix it?

Blu R1 HD Bluetooth Issues

I'm new to xda. I installed TWRP and removed OTA updates and Amazon ads on my phone. I'm on kernel version 3.18.19+.
I am trying to connect the phone to my Chevy Volt and play music via bluetooth. This worked fine with my iPhone.
The phone connects to the car, but I don't hear any music. In addition, when I connect it via USB, music still doesn't play through the stereo. Any ideas?

ThePol9 said:
I'm new to xda. I installed TWRP and removed OTA updates and Amazon ads on my phone. I'm on kernel version 3.18.19+.
I am trying to connect the phone to my Chevy Volt and play music via bluetooth. This worked fine with my iPhone.
The phone connects to the car, but I don't hear any music. In addition, when I connect it via USB, music still doesn't play through the stereo. Any ideas?
Click to expand...
Click to collapse
I had Bluetooth issue like you decribe once with this phone. I rebooted and problem didnot come back. As far as through USB I don't think that works with any Android. I could be wrong in that though

mrmazak said:
I had Bluetooth issue like you decribe once with this phone. I rebooted and problem didnot come back. As far as through USB I don't think that works with any Android. I could be wrong in that though
Click to expand...
Click to collapse
I tried to reboot several times, but it didn't seem to resolve the issue. I can make phone calls through the car bluetooth, but no audio. And additional suggestions would be appreciated!

Turn up the volume.

yurkinator said:
Turn up the volume.
Click to expand...
Click to collapse
Ha! I wish it was that simple.
Any other Chevy owners out there with this problem?

ThePol9 said:
Ha! I wish it was that simple.
Any other Chevy owners out there with this problem?
Click to expand...
Click to collapse
Lol, sorry, I just had to chuckle blame it on the chevy. :silly: I know they did some Bluetooth fixes in M 6.0.1, just kinda hard to narrow it down. I have audio issues transmitting to my Bluetooth receiver on my home surround, but that thing is like 5 years old.... I'm still looking for a solution though, I'll chime in if I find anything that works for me. My issues are stuttering and random loss of connection

Just wanted everyone to know that I solved the problem. There was a firmware update for the Chevy Volt to enable Android Auto. Once the dealer applied the update, bluetooth streaming is working. Awesome!
BTW -- Android Auto works really well!

ThePol9 said:
Just wanted everyone to know that I solved the problem. There was a firmware update for the Chevy Volt to enable Android Auto. Once the dealer applied the update, bluetooth streaming is working. Awesome!
BTW -- Android Auto works really well!
Click to expand...
Click to collapse
I'll be damned, it was the Chevy!!!

ThePol9 said:
Just wanted everyone to know that I solved the problem. There was a firmware update for the Chevy Volt to enable Android Auto. Once the dealer applied the update, bluetooth streaming is working. Awesome!
BTW -- Android Auto works really well!
Click to expand...
Click to collapse
Just out of curiosity, what year Chevy Volt? I have a 2013 and would love the option of Android Auto.

lordmorphous said:
Just out of curiosity, what year Chevy Volt? I have a 2013 and would love the option of Android Auto.
Click to expand...
Click to collapse
I have a 2017 Chevy Volt. I believe the 2016 is also eligible for the upgrade.