The original wiring on TF trucks had the power to the ignition switch passing through the amp meter. All trucks used an amp meter. It used spade terminals. No telling what you have If someone has modified it. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes 1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes 2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans 1947 Willys CJ2A w/F-Head engine