speedometer is controlled by circuit G7 on the TCM, Pin 58 is circuit G7, a white/orange wire ( ground for the sensor is on pin 51,a black/light blue wire)
Tach hooks up to white and black wire on the pcm, turns to a red wire some where.
G4 circuit on the bcm sends fuel level signal.( G4 is a dark blue wire coming from the fuel pump, going to the bcm)
volage to the instrument cluster is provided by the F33 circuit on the BCM (maybe), Protected by a15 AMP fuse.
Oil Pressure light is on circuit G6 from the oil pressure sending unit, grounded to the block (grey wire).
illumination for the cluster is provided by circuit E2 from the BCM (orange wire), or circuit L7 yellow/black wire) from the headlight switch.
ground for the circuit is provided by circuit Z1
Engine coolant temp sensor (tan/black), Ground for coolant temp sensor (black/Light blue)
so, from the wiring diagram this is what I've figured out. I was just wondering if gauges like autometer, or other brands will work on theese signals