Need to reset to factory. Navi and system settings are grey'd out. Im guessing its the parking brake. Any way to reset w/o hooking up P brake? I know on my z110 you can just hold mode and track on the splash screen. If theres no other way than p brake, What wire and how could I hook it up to a power source. Im using a car jump supply to power up. Thanks for your help.

What wire and how could I hook it up to a power source. Im using a car jump supply to power up.

the light green wire, and it just need to be grounded (you can touch it to the body of the radio)