I got my 2002 Suburban mirror in today as well. Its a Gentex-177 model, paid 60 with shipping of ebay. I got the idea from a build on jeepforum. Install should go pretty smoothly as the xj is already wired for the temp sensor and the compass is self programming. Anyone has any information on how the stock temp sensor is wired into the cherokee's interior (if it is at all).
Heat shrinked the 7 wires

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Now I have to figure out the wiring to get the temp and compass functional
From the left: black w/white stripe, green w/white stripe, pink, grey, green, black and another pink, any thoughts?