I want to repalce my factory Audi Symphomy Stereo with a Pioneer deck that has built in bluetooth in my 2002 A4. I will be purchasing this from Crutchfield, with all of the installation hardware. My local locksmith advised that if I do this, he cannot guarantee that my keys will work, as the aftermarket stero will completely screw up my electronic systems. Has anyone had these type of issues???

 

Local locksmith?? If anyone, you should be talking to the local dealer and from what I know you shouldn't have problems. You'll need radio keys, though, to pull out your old Symphony unit. Btw, welcome to the forums!

 

Thanks dude. I went there to get an extra key made up and this is what he told me. I know these cars can be tricky so l went to this forum to get some help. Thanks for the help.

 

Changing the head unit has been known to cause some minor issues. Nothing so dramatic like the keys not working though. You should be just fine.

Welcome to the forums

hvae fnu

 

Thanks for the post, do you know what some of the minor problems are?

 

the most common complaint I seem to hear is that some installations mess with the auto-scan function of the vag-com and/or prevent access of certain modules through the OBDII port. I can't say for certain that the aftermarket head unit causes this, it just seems that it is one of the common factors and it is relatively rare.

Other than that I am not aware problems with aftermarket radio stuff, except the usual problems one has when trying to run all the wires for a full install of amp(s) and speakers

 

Thanks again