I just got a set of auto meter cobalt afr and oil pressure gauges. i got the afr working but the wiring on the oil pressure is wierd. the red and brown wires are together with a connecter, i have a yellow and grey connector left. also the blue wire is connected with a skinny red wire on the afr gauge. this wiring is confusing. if anyone has the same set up could you tell me how u wired it or give me a diagram? the gauges were used and were off a eg. please help thnx