How do you reset radio code error 8 on Phillips?

To reset the radio code error 8 on a Philips car radio, you typically need to disconnect the power supply to the radio for a few minutes. This can usually be done by removing the car's battery for about 10-15 minutes, then reconnecting it. After reconnecting, the radio should reset, and you can enter the correct code. If you don't have the code, consult the owner's manual or contact Philips customer support for assistance.