Yeah I used a starter solenoid w/ 2 small terminals, I tried using the solenoid housing as the ground but it was made to use the 2 terminals. I just remembered a while ago I had the engine/body ground come loose and that made the GP light flicker, the difference is the GP relay wasn't clicking so I don't thinks the GPs were actually lighting.
I'll check the new solenoid ground and make sure it's tight. I'll post some pics of the settup sometime.