ok..so I had to replace the headlight which required removing the battery...now the radio is locked.....how do I get it unlocked???

 

There is a 4 digit code. It might be on a credit card sized card in your owners manual, or on the HU itself. If you are unable to find it, you can call the dealer with the VIN and they can get it for you. Some dealers require you to bring the car in so that they can be assured that you actually have it in your possession.

 

I got the code from the dealer...and got it reset....thanks