[kennejp]

Hey guys. I just picked up a e82 135 with the business professional radio. I can't figure out what's going on with the six and looking for some help. I replaced the fuse and now cigarette littler is working. Then still wasn't working so went to bmw and got a new aux/USB unit and still nothing. Did a full scan of the car and didn't get any codes in modules. I pulled the back of the console apart and don't see anything apart so the opened the trunk and got to the Module under the amp that controls it. All way plugged it but disconnected everything and reconnected everything and still nothing. Not sure what my next step should be. When I go to aux on the radio I can hear the speaker static if I turn it all the way up but the USB is not getting any power. Help please. Thanks.

[ctuna]

You are going to have to get more specific.
First you need to list the installed options on your car .
You can find out what they are by running one of the Vin checkers
on your cars VIN number (free checkers found on line).
In most but not all cases the aux comes from the TCU/mulf/combox.
USB comes from these modules as well as aux in cars up to 2010 and
earlier. You cannot just plug one of these in and have it work without
programming.
Does the radio and cd work? Do you have sound of any kind?

When you said you got one from BMW do you mean they installed it
and got it working?
Which sound system do you have it has nothing to do with the Head Unit.
whats the six one more than the five?
Did you use a BMW specific scanner?


BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/attach...1&d=1209780865
http://www.e90post.com/forums/showthread.php?t=641323
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...4&d=1278871872

[kennejp]

Thanks for the reply and information. My car has the usb and aux from the factory. All I did is get a new usb/aux connector unit. The radio works fine and I haven't tried the cd part. When I scroll over to aux on the radio and click it nothing happens and when I turn up the volume on both the radio and for the aux all it does is get a louder static noise. I know the usb part isn't getting power cause when I plug my tune2air in nothing lights up but when I plug it in my other 335 the tune2air lights up. Like I said I have replaced the cig fuse and they are all working now.

[ptpending]

what MY of your e82
can you provide pic of the module you've find in the trunk

[shenanigans01]

I have the same problem. I have aux and USB from the factory but only have the aux option in my radio, which doesn't work.

[davidescze]

Originally Posted by shenanigans01

I have the same problem. I have aux and USB from the factory but only have the aux option in my radio, which doesn't work.

same here.

[ptpending]

Originally Posted by davidescze

same here.

your mulf2high is dead then
check your trunk for it and dig some threads on this forum how to check MOST circuit to see if module alive

[shenanigans01]

Originally Posted by ptpending

your mulf2high is dead then
check your trunk for it and dig some threads on this forum how to check MOST circuit to see if module alive

I did this once and they had me check the light coming out of the unit's fiber connection. It was fine. Aux still doesn't work.

[ptpending]

then you need to check module using diagnostic software, if it see module and there is no errors, then HU should be recoded

[Asmswerve]

Same happend to me everything with was working fine until somebody ripped out my retrofitted combox the Bluetooth, Aux, & USB doesn't work. I bought a new combox I retrofitted the combox again still doesn't work I don't know what to do anymore 😞😞

[ptpending]

new combox should be coded to car options list

[RossBMWZseries]

I haven't replaced my OEM aux box (the one that usually falls down the middle compartment), but I checked the cables connected to it and seem fine. Fuse seems to be ok. I don't want to replace the Aux box itself (comes with the USB as well which doesn't work, cig lighter works just fine) if that's not the problem. I'm doing a road trip to Dallas in June so I'd like to get this fixed ASAP