I'm cross-posting a thread from a different site in the hope of more activity here. Hope that's okay. Long story short, the wiring to the ignition and fuel pump have been mucked with. Badly. Long, long ago (after the ignition switch broke) a friend put in a contact switch and an off/on...

Hello, I have an unused rear seat heat switch. Can I rig that up as a toggle switch for the amp? If so, how? I think it has about 5 prongs.