Has anyone had this problem? My a/c will go on high by itself and my radio lights go out and I have know control of it. I have to slap the radio and a/c buttons to get the lights back on. This is really anoying. Does anybody have an idea what the problem is? By the way its an 03 coupe.

 

A/c controller.

 

Common problem for the 03-04 cars. Time for a new radio.

 

a/c control panel. Early G35s had problems in this area. It's not a cheap fix.