Unfortunately in this particular item we weren't able to test it  before we got it out of the car  , donor was a 2003 BMW 745li . 

Part is gonna be auctioned at a low price because there's NO warranty and we are not sure if it works 100% radio and audio was working perfectly though . 

We rather to do it his way and not take the chance of selling it warranted without been sure if all the canals work properly.

Thanks and good luck !