Stray wire behind dash
 

I'm hoping someone can help me here. I have a 79 that I'm putting back together and have a wiring issue (also posted in my build thread but hoping I can get some help here too). I went to clean up my wiring harnesses before I put the dash back in - toothbrush and WD-40 to remove grime, dust and sandblast grit, etc. - and I found a stray blue wire that was haphazardly routed through and among the different bundles of wiring - definitely NOT factory. I looked carefully at all the connections and only one seemed to be missing a wire - the connection from the harness to the choke magnet / choke mechanism. I traced the other end back to the fuse box where you can see in the pictures that someone popped the wire into the 20A AC COND connection.

I have the wiring diagrams from 79 and the FSM. Both seem to confirm that this connection is the choke connection, and "B-09".


Couple of stupid questions (I'm NOT very electrically inclined - at ALL).

Question 1: Why would this connection only have four wires on one side per the wiring diagram, and 5 on the other per the FSM??

Question 2: Should the choke magnet need a separate 20 amp feed?

Some pics for reference.


https://cimg2.ibsrv.net/gimg/www.rx7...efb2e43100.jpg


This is where the stray wire was popped into the fuse block. The two gray wires to the left were speaker wires, now removed.

https://cimg1.ibsrv.net/gimg/www.rx7...396a302151.jpg

It was tied into the 20 amp AC and DEFOG fuse.

https://cimg8.ibsrv.net/gimg/www.rx7...571dfcebe5.jpg

The connection that the other end of the blue wire was dangling near was identified as B-09 in the wiring diagrams.

https://cimg0.ibsrv.net/gimg/www.rx7...54f7835397.jpg

The wiring diagram matches what the connection has - 4 wires, in the right color and sequence.

https://cimg9.ibsrv.net/gimg/www.rx7...82e5a6971d.jpg

The connection B-09 shows up in two places on the wiring diagram.

https://cimg6.ibsrv.net/gimg/www.rx7...53216c2dbf.jpg

This is the other half of the connection, and it has FIVE wires, all matching the FSM.

https://cimg7.ibsrv.net/gimg/www.rx7...79fd8cbf49.jpg

https://cimg5.ibsrv.net/gimg/www.rx7...cf23e8e74d.jpg

This is the FSM picture of the connection.