I'm in the midst of building a MG Midget with an early Honda S2K drivetrain, and have a very basic wiring question. On the engine harness, at the trans end of the head, the harness has 3 main branches: the left branch is for the injectors, right hand branch is plugs/coil-overs, and the middle one probably goes to battery ground. If I knew someone with an S2K, this would be answered in about 1 minute, but I don't, so hoping a S2K owner can confirm, or state where this middle single, 4 or 6 ga. wire goes. Thanks!