Found this harness on Year One and Classics sites. Says it's for a 65 A body. But the connections look just like the connections needed for the back of my tach. So I assume it will work?
Yep. Before you hunt a fuse clip for the accessory port of your fuse box... Your windshield wiper switch may have a unused spade terminal that serves the same purpose. Pick up the switched and fused 12 volts there.
