So I recently got a used Alpine IVA-D310.
I installed it and didn't know what to do about the parking brake wires.
I have an 1985 Chevy K1500 so its way old haha.
The screen won't light up but if the sun shines in it I can read it.
I can press the buttons on screen and they work just can't see them.
Is it possibly cause of the parking brake wires or what?
I'm thoroughly confused?