A blue/white wire is often present for an electric aerial feed. If the radio doesn't power off correctly, some installers suggest leaving certain auxiliary wires (like the white/blue) open rather than joining them to the main loom.
Code entry is only possible when the display shows a blank screen with a faint backlight. clarion pu-9469a
Equipped with a 4-digit anti-theft security code system. Essential Operations and Troubleshooting A blue/white wire is often present for an