Recently had to remove cluster to replace upper speedo cable housing and install factory tach. On reinstalling, I found an unplugged connector that goes to wiper switch. Three wires- orange, white, and green. Unusual three-in-a-row connector. Since I am old and clumsy, I have not been able to find the proper place to connect. (1978 GMC caballero with full gauge package and intermittent wipers) I also found a terminal strip mounted above fuse panel and near dashtop. Any info on that?