Just wondering where everyone else tapped in for power and where they went with the ground. I actually have a 12V, but it has the 99+ interior so I thought this board would be a good bet. Everything has been pretty straightforward, and I know where to go for the illumination, but rather than start poking around with a test light I thought I'd ask where the other Isspro fans tapped in. Should I run the ground up to the battery? What did you guys do? Thanks

 

when i installed my isspro guage, it said to tap into the ash tray light, because its connected to the dimmer switch...

 

I ran my key in power to the engine fuse so even when my engine is running with the key off and my turbo timer is running my gauges are still working and ground i ran to the kick panel. Constant hot i ran to the battery if i remember correctly. This was with different brand gauges but should still work.