I disconnected my battery to work on my car, installed new short shifter and cmc and now the stock radio wont turn on. The red anti theft light flashes like the car is off when everything else is on???
You can try a battery reset . Disconnect the possitive and negative cable touch them together or a zip tie so they stay together and turn the ignition key to the on position . Leave it for about 20 minutes turn the key off reconnect the battery cables and try it again .
I havent tried the battery reset thing yet but just tryna get more feedback. Its not asking for the code at all, i kno the code, but its acting like the radio is off and the anti theft light is still flashing red