My 96 C4S has been sitting for some time and I recently replaced the battery. Since then, when I enter the radio code and press the tuner switch button as described in the manual, the numbers stay displayed and the first number is continually blinking. The radio will not turn on from there.

I know I have the right code since I have the original code card and the radio worked last year.

Does anyone have any ideas? Does the dealer need to reprogram something since the battery was replaced and the car was sitting dead for so long?

Not sure if it matters but the CDR 210 I have, was not a factory install.

TIA

 

After you put in the code, push up on the right rocker switch, the one you change stations with. That's the second step with the cr/cdr 210's.

 

I'm having the same problem. I've entered the proper four digit code. Waited a second until the first number started flashing again, then pressed up on the right toggle button (manual calls it the "signal selector switch") and I'm getting no love.

Any thoughts?

John

 

it's a CDR 210 radio in a porsche boxster.
​​​​S/N: V5011488

Been all over the web but can't find a free code and don't have a card to pay for one online at the moment.

SO I'D REALLY APPRIECIATE ANY HELP TO FIGURE OUT THE CODE FOR ME!! PLEASE & THANK YOU!!