Edge cases exist and depending on the minute specifics of how your original car radio works, these exact methods may or may not work for you. However, this guide is intended to get you thinking ...

If the stereo unit is the one that came with the car from ... it until you work out the process. In some vehicles, you’ll also need to find the radio’s security code and key that in before the unit ...

The fact that everything comes on when you stop and restart, albeit briefly, suggests that it could be a problem with the car's computer. Disclaimer: You acknowledge and agree that all answers are ...