Alpine flip-up screen HU..
Making the screen visible (dvd, nav., etc) viewable while the car is rolling, there are two wires: one to brake pedal switch, one to park brake wire.
I know theres a way to wire the park brake wire to a toggle switch, that you can "trick" the HU into thinking the car is sitting stationary, but I just cant remember..
do you connect one side of the toggle switch to ground, and the other side to the park brake wire from radio?
Help is appreciated!