Any one ever swap out the "lights only" console for the one with the compass, temp, MPG read outs? Does the other end of the wire just unplug somewhere and swap out the little harness or is it part of the big interior harness? The end that plugs in the console itself is different. My truck I want to swap it into is a 5 speed, the donor is automatic, will the overhead display work if I swap it in, particularly the MPG reading?