Can anyone tell me where the ground points are on a crew cab? I've got some wierd electrical problems that I think might be ground related. My dome lights only work when the front passenger door is open and my blinkers will sometimes blink real fast without the associated sound. The blinkers always work in the front and rear, just blink fast sometimes.

Anyway, the problems kind of remind me of the goofy stuff that happens when a trailer has a bad ground. I hoping that if I clean a few ground points my problems will go away.

Thanks