[[ http://www.obdvip.com/porsche-piwis-tester-ii.html|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[[ http: http://www.obdvip.com/da-dongle-j2534.html| 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.[[ http: http:http://www.obdvip.com/da-vina-2534-landrover-jaguar-approved-sae-j2534-pass-thru-interface.html|DA-VINA]]