ACC = accessories, usually you would want that to go to a fuse panel to power things like the heater so that they're off when the switch is off - and make sure you have a fuse on the heater .... avoid hooking anything to the ammeter for power .... the horn should have one wire from it to a power point, preferably from a horn relay, the other wire [to supply ground] goes from the horn or relay to the horn button

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics