cool, sounds like ya got 'er figured, yes that heavy red wire is what needs to be switched on and off, certainly best not to have power to any acessories when yer in bed wink

I don't have a 58 manual, just 55 and 57, and a different diagram I found on the net that I think was 58-60 car, but all are really the same

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