On my 87 Fire Recovery K5, I'm having a little wiring trouble. I replaced the engine harness and now I'm ready to see what this sum'bitch'll do. I've got power to the ignition switch, with occasional power to the starter when I turn the switch. I just don't seem to be getting 12 full volts down there. I've got a brand new battery in it, and I'm getting nothing. All it will randomly do is click the solenoid. Since I've got power inside, can I bypass the starter switch and use an auxilary switch to complete the circuit on the starter?