Confused on wiring. 1964 Barracuda.

So, I've been working on the 1964 Barracuda. I replaced the clips in the fuse box and wired it up the way it came out. Today, I noticed that one of the 20A fuses was blowing. The fuse is supposed to be for the cigar lighter, but it's not hooked up. It was a yellow wire. I confirmed with multi-meter that it was grounding out. Tried thinking of what I changed recently, and the only thing I did was plug in the door jamb switch. It too has a yellow wire. Ohmed it out and sure enough, that's where it's going. My question is, why?

Whomever had the car before me removed all the interior lights when they reupholstered. No map light, courtesy lights, glove box light etc. The door switch was disconnected. I'm trying to figure out why they would have plugged the door switches in place of the cigar lighter rather than keep them the way they are supposed to be, which looks to me should be a pink wire going to the map light, that no longer exists... if it did before.

The only pink wire coming out of my fuse box is D-3 for my dome (non-existent), stop and tail lights. Is there a reason they would need to plug in that yellow wire to power if it's not going anywhere? Does it have something to do with the headlamp switch since it goes through it?

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