Hi - Installing a speedometer on an 81 spitfire, and the wiring on this particular sled looks different than the wiring on the instructions provided with the speedometer. The instructions say to install a wiring harness, but it appears there is already a harness installed. There is a 4-opening plug at the headlight with nothing attached to it. Can I just connect the yellow wire from the speedometer to one of the yellow wire slots (3 are yellow and one is black)? The instructions also say to attach the black wire from the harness to one of the posts on the speedometer, but the harness in the kit doesn't have a black wire. One of the openings in the 4-opening plug I mentioned above has a black wire running to it - should I just supply my own wire and connect that to the speedo post?
Thanks for any advice.
Scott