My Di-Pricols showed up today and started wiring them. The pyro has 2 positive and 2 negative connections, i believe they are wired into the headlight switch and ground. The boost is wired 1 positive and 1 negative also wired into the headlight switch and ground correct ? The trans temp guage has a lamp (1 positive, 1 negative, as well as a wire for the sender) there is one extra wire for 12v ignition. Has everyone hooked this wire to a switched 12v wire or are they just running that one to the headlight switch as well. Anyone ? One last thing, does anyone know he color of the wire for the headlight switch on the 04s ?

 

I had the Hewlett guages on my 01 and as I remember the EGT has + and - for the pryo and + and - for the lamp. The trany had lamp conections sensor conection and a + wire that needs to be connected to a switched 12 ( not headlight ). A good place to get the lamp power is the ash tray light. It comes on with the headlights and is variable in brightness with the dash lights.
I hope this helps.