I am hooking up my autometer boost/fuel pressure gauge again. It's been out so long i decided to rip out the wires and rewire everything. With that being said i printed out the the autometer boost gauge instructions and the diagram calls for a red wire wire.. however on the guage itself there is a black (ground) and white (power). Im guessing the fuel pressure guage needs 2 grounds (one for the gauge and sender) a red wire (??) and a black (power). Any insight wuld be most helpful, thanks guys! Im looking foward to your responses