So my problem started off with the fuel gauge dropping when the breaks were applied then the fuel gauge started moving with the left turn blinker and now the fuel gauge doesn't work at all when the headlights are on. This I could live with but now with the headlights on and the breaks applied the reverse lights and the license plate lights light up but no break lights and if I put the blinker on with the headlights on all the lights in the back blink. Does this sound like a ground issue or is this a sign that the wiring harness? Any help on were to start will be much appreciated