Mystery connection on variable wiper switch

[KrisKringle]

Hello from Germany. My 68 cuda is finally here. I have a quick question. Can anyone tell me what the open connection on the back of pn 2770378 variable wiper switch should be connected to? I did not pay attention when I pulled the dash out, and 30 years ago, I made a new wire with a spade end, but forget where it gets connected. The pole has 12v with the key on in the run or acc position.

The terminal in question is the one on the left.

 

[65BCODA]

I may be mistaken but I believe it was just another place to pick up an additional "hot" connection for convenience.

 

[KrisKringle]

I may be mistaken but I believe it was just another place to pick up an additional "hot" connection for convenience.

Thanks, that would explain where I took the power for the EQ I installed. I will take look at the harness I made for the old stereo. The original AM/FM is going back in now that I have a new dash...