I'm trying to figure out what's going on with my mothers 97 S320. Her radio (factory unit) would not come on so I instructed her to input the radio code. That worked fine for a while. But when she would turn the car off and come back to start it again the radio would not be on and it will no longer ask for a code to be input. There was an instance where the radio just came on after starting the car and upon restarting it was off again and would not ask for a code. When you try to power up the unit nothing happens no antenna action or anything. The fuses seem to check out OK. The unit has remained dormant now for about 3 or 4 months.

I'm hoping someone may be able to shed some light on the problem so I won't have to travel up to Ohio (I'm in FL.) in a futile attempt to diagnose and fix the problem.

Sorry for the long post.

Regards,
-Anthony Marsh