adding a tachometer
A tachometer can be added very easily. Many newer Minis with the 80s style plastic gauge box already had the connections necessary to add a factory tachometer. If yours does not, here are the easy steps:
- Red wire to switched 12V supply on the fuse box.
- Black wire to earth (anywhere that is a metal part of the car body).
- Green is the sense wire and it goes to the coil (-) terminal (the side of the coil with a wire going to the distributor).
- White is for internal lighting. I would splice that into any "hot" part of the dash illumination circuit you can find/access.