Fuse box questions
 

On the fuse panel of a 66 are the prongs on the right just for fused power add ons? mine only have like 3 things plugged in. also the fuses say like heater and back up lamps, im guessing the two names are whats on that circuit?

Re: Fuse box questions
 

I believe your assumptions are correct. These junction blocks may have a different appearance from the 1966, but following are a few diagrams from the 1960 Chevy Accessories Installation Manual that shows the factory had purposeful connections to the open terminals on the stock fuse panel. Some of these accessories included a radio, spotlight(s), cigarette lighter, glove box light, turn signals, windshield washers, heater, and lighted compass. For some accessories an auxiliary fuse panel was even added to the stock fuse panel:

http://img217.imageshack.us/img217/1...ssories279.jpg

http://img821.imageshack.us/img821/7...ssories107.jpg

http://img543.imageshack.us/img543/8...ssories283.jpg

http://img834.imageshack.us/img834/3...ssories365.jpg