Porsche Piwis Tester 2 Delco radio rds unlock codes? I changed the radio in my 03 impala and it is locked up,how can I unlock it. without going to a dealer,,I have the radio serial and vin code of the car It came from

Best Answer DA-Dongle J2534

Any tech with a GM Tech 2 scanner can unlock the stereo. There is no other way except a scanner to fix this, sorry.DA-VINA