Hi.
I changed my car stereo frow a HU 401 to a HU601. My car is a S80. Ther cd player works fine but not of the buttons light up. Does anybody know why? I would appreciate it if somebody could tell me what I need to do.
Many thanks in advance.

 

here is a dumb question, is the 601 a new radio or used? also i have read here that not all radios are interchangable. something else to keep in mind... there should be a wire from the car and a specific terminal on the radio that controls illumination. now just figure out which...

here is the only link i could find that may remotely help
http://forums.swedespeed.com/showthr...HU-audio-input