2) Ensure that the fascia contacts/connections aren't worn and that the fascia is making good, solid contact. Because the fascia is removable, over time the contacts on the fascia and the contacts on the back of the radio can become dirty or worn. For best results, use Cleaning Alcohol, or to find out more on how to clean your contacts, consult your radio handbook.
3) Press the ‘Reset' button if your radio has one, and then check for correct operation. Consult your radio hand book for details.
4) Check you car fuse (see No.6 & 8).
5) If your radio doesn't have a "Reset" button, release your radio from your dash and physically disconnect the power connector and then re-connect and test for correct operation.
6) Release your radio and check that the fuse that is built into the rear of your radio (where available) isn't blown and ensure that the wiring connections are secure and correct. Especially, check the integrity of the earth, 12V ignition and 12v permanent live wire connections. These will be black, yellow and red respectively.
7) If you are using a harness adapter, ensure that the pins have lined up with the car's existing radio connectors and the radio's ISO connectors. Ensure that some haven't been slightly bent. Inspect very closely.
8) Check that power is getting to the radio. You may need to use a test light or power probe for this. However, first check the radio fuse that is built into your car's fuse box. Consult your car handbook for location of the radio fuse.
If the problem is still present after following the above, please consult a car audio expert.
