91GPSTE Posted November 16, 2004 Report Share Posted November 16, 2004 I got a pair of HUDs from a junkyard a few weeks ago and now I want to install one of them and can't really figure a few things out. Are all HUD units for 88-93 GPs the same? I looked on this website and my dimmer switch is different then the one pictured. Also I don't have a metal tray with what looks like a cable running from it to the dimmer switch. My dimmer switch doesn't even have a spot to hook the cable to. http://pages.prodigy.net/gearhead43/DavesGP/hud.html Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted November 16, 2004 Report Share Posted November 16, 2004 They changed mid-year 1990. One adjusts up on the HUD unit itself, the other adjusts via the dummer switch. There's the difference. Quote Link to comment Share on other sites More sharing options...
no1kicker Posted November 16, 2004 Report Share Posted November 16, 2004 What year is yours? The TGP ones are different than 91-93. TGP ones have the grill, and height adjust on the hud unit. Wiring is also different. Daves page is for the 91-93. Let us know and I can help. I've put both in my STE. Quote Link to comment Share on other sites More sharing options...
91GPSTE Posted November 16, 2004 Author Report Share Posted November 16, 2004 This one has the grill on top of the HUD so I guess it came out of 89-90 and I want to put it into my 91'. Will that be possible? Will my car be prewired for it too? Quote Link to comment Share on other sites More sharing options...
no1kicker Posted November 16, 2004 Report Share Posted November 16, 2004 Yes it's possible, no it's not prewired. Do you have wiring diagrams, and the hud dashpad? That will make life much easier. Quote Link to comment Share on other sites More sharing options...
91GPSTE Posted November 16, 2004 Author Report Share Posted November 16, 2004 I don't have either one. I plan to just cut my dashpad. Would be nice to get a hold of the diagrams though. Quote Link to comment Share on other sites More sharing options...
no1kicker Posted November 16, 2004 Report Share Posted November 16, 2004 I did both of mine with the correct dashpads, so I can't help you there. In the meantime I'll see if I can find the wiring diagrams you and anyone else may need. Quote Link to comment Share on other sites More sharing options...
no1kicker Posted November 18, 2004 Report Share Posted November 18, 2004 Here ya go: TGP HUD pinout A1 ignition feed A2 ground A3 park lamp signal A4 HUD dimmer signal A5 low fuel signal (to the brown wire behind cluster) A6 left turn signal A7 check gauges signal (to the tan wire behind cluster) A9 VSS A10 right turn signal A11 high beam signal Hope that helps. Connect them to the same locations as Dave's website says and you should be good. Quote Link to comment Share on other sites More sharing options...
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