Originally Posted by go2cnavy
? Why not just use a toggle switch like mentioned above ? It would work perfect in the HDB mount.
Radio Shack, less than 5 bucks, not waterproof, slathered on a little silicon sealer to help with splash resistance. Works great, and I live in a wet climate.
I too thought about an indicator light, but worried the draw night affect the curve. The toggle is its own indicator: up for high octane, down for low.