E46 GPS Navigation radio side don't work!
Hi I have a 325ci 2005 and my E46 GPS Navigation Widescreen Monitor Screen GPS stopped working only on the radio side.
This winter I changed my batterie and I made an inversed polarity by mistake and a few elctrical things blew up. I went to the dealer and every was solved expect the radio side of my widescreen monitor. The navigation side that includes setting etc. is working pretty well, even the sceen is opening to insert the cd but no sound will come out because de radio side (left) that includes the on/off ,AM-FM, Mode, and volume is dead.
They than suggested to buy another one which I did. The problem is when I put the new one in my car the radio side still don't work. So it is not the Navigation Widescreen Monitor that is in trouble but something else.
Do you guys have any suggestions on how to make this thing work!!
Thanks in advance