Im wiring my pro-comp tach and I noticed my sunmeter gauges are wired funny. First of all the instrument lighting wires are all wired to 1 wire that is then wired to the LPS 4amp fuse box. The lights work fine in all these but the ampmeter has never worked. Should this red wire on the ampmeter be wired to something other than a 4 amp fuse box connection? What are the best areas to wire the 4 wires from the Pro-comp tach? The inside 2 will go to a light source(from other gauges ) and the main power will be wired where? The other 2 go out into the engine compartment. One is hooked right into my MSD box? The other is best grounded where?