Hi, I am installing the roush gauge cluster. I inserted the old regular gt harness, and the guages work great. However, roush has an additional "Inverter Power Harness Pack" that goes with it. This is basically two wires, one red and one black. I am not certain where to put these. I assume the headlight switch so that when i turn the lights on, they cluster will also light up.

Does anyone know where there is a wiring diagram or anything?

 

bump

 

ok, are you saying that your gauges
do not light up, when you turn
on the headlight switch?

if that's the case, i might be able
to help

 

yes, everything works well. just, the backs of the gauges do not light. roush has two additional wires and i have no clue which wires they go to on the headlight/fog light switch.

 

what year is your car

 

'08, and thank you for your assistance

 

are you 100% sure, the red and black
wires are for the gauge back lighting

 

i'm not. but that's what i read that they were for in the 2004 rough gauge cluster. i'm not sure about anytyhing 2005-2008. that's why i haven't messed with it yet. i don't want to blow it out. roush doesnt sell these yet for 2005+ so getting another will be very tough.

 

well i can help you with the wiring, i wired
my gauge backlighting into the illumination
circuit (so the dimmer switch controls the
brightness)

if i were you, i would want to measure the current
draw of the backlights to know what i'm dealing with....

if you just want to go for it and wire it up, i'll
pm you a link for the procedure

 

that would be awesome, you rock!