t-townS70 Posted June 24, 2012 Report Share Posted June 24, 2012 So I bought this evo prosport gauge and I tried installing it. Here's how it's set up Five wires from the gauge: -White (12V accessory power) -Red (12V accessory power) -Orange (12V headlight switched on) -Black (Ground) -Green (Connects to the white wire on sender) I have the Red and white wires tapped to the 12V blue and yellow striped wire on the wiring harness on the back of the headlight switch. I have the Orange tapped to the pink supposed (headlight wire) the green is connected to the white accessory wire and the black is connected to the other black on the switch. All of this is connected and the gauge won't even light up. Any suggestions? I have a 99 S70 T5m if that helps I don't know what to do next I'm thinking about sending the gauge back to get it tested but I can't return it now because I've already tried to install it. Thanks Link to comment Share on other sites More sharing options...
Smiles855R Posted June 24, 2012 Report Share Posted June 24, 2012 I got the Mechanical Green/White boost gauge. Hooking it up took some trial and error. All wires hooked up to headlight switch, red wire(12v accessory power) connected to Blue w/ yellow stripped headlight wire, Black (ground) to Black, White(accessory power on) connected to Red w/ Black stripped wire. Green (headlight switch) not connected, because I couldn't figure out which was the headlight switch, even after looking at the Hanes manual wiring diagram. I could only manage to get one color or the other, so just running white. Thinking about getting a tester light to get the green working. Link to comment Share on other sites More sharing options...
herz3mc Posted June 25, 2012 Report Share Posted June 25, 2012 Our light bulb was out on one of ours when we got it, try checking that. Link to comment Share on other sites More sharing options...
t-townS70 Posted June 26, 2012 Author Report Share Posted June 26, 2012 installed thanks to Chris haha someone can remove this thread Link to comment Share on other sites More sharing options...
kalvin Posted June 26, 2012 Report Share Posted June 26, 2012 Glad you got it figured out. What was the issue? Link to comment Share on other sites More sharing options...
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