My glow plugs have been sucessfully wired today WOOOHOOO!!! Before, each wire going to each plug (they upgraded to the pencil style) consisted of 2 12s and 1 10 ga. wire glued together. Same way to the 80 amp switch under the dash. The ground cable was 2 4 ga cables glued together. It has all been upgraded. What used to be a bunch of wires turned into black, marine grade 8 gauge, soldered and taped, the ground is now a piece of 2/0 gauge with extra heavy duty clamp. I used a starting solenoid out of a ford to keep all that amperage out of the cab. Glow on.