Audi Q7 No audio No sound fix Amplifier location How to replace parking light lens rear bumper

2007 Audi Q7, Most Audi models have same troubles which is water in trunk causing damage to the amplifier. Remove the panels to get to the amplifier, check power and speakers, Look for the signs of the water marks on the amplifier, if you see white or rust on the amplifier you have defective amplifier, buying an amplifier online will only give you sound on one or two speakers, all Audi amplifiers need to have programming done . you may fine local mechanic who maybe able to program but it may be difficult to find someone who can do this, Some dealers don't want to program the old amplifier due to many defective amplifiers out there, All water damage caused by drain holes clogged up, besure to clean and also check for broken washer fluid line going to tailgate