I'm replacing the dash in my 85 BRAT. I made the rookie mistake of not labeling the wires as I disconnected them and now I have an "extra" wire that I can't find a matching plug to and I want to make sure that it's for an option that my BRAT didn't come with or find what plug I should be looking for.

 

Front view:

 

Backside of Instrument cluster:

 

It looks like it has something to do with the brakes, but I'm not 100% positive.

 

Thanks in Advance for your help.

No one recognizes this wire?

 

It is Yellow with a red stripe and goes to a black plug. I can't find a matching black plug. Would it be another color?

 

Need this info so I can get the BRAT back together and get it to the "shop" to start the resto / custom work.

 

Thanks in advance!

If i'm not mistaken those are the wires for the speed sensor. If you don't have cruise or a computer controlled system they are not hooked up.