I thought this was an interesting DIY article I found while searching for examples of aftermarket installs of gauges on 97-01 XJ’s.  I have been wanting to install a transmission temperature gauge and I’ve been searching the web for examples of where people have mounted gauges.  I thought this was a great utilization of space.  Especially since I don’t use my ashtray.

http://www.jeepforum.com/forum/f11/aftermarket-xj-temp-gauge-sensor-install-ballos-t-method-990168/

http://go.jeep-xj.info/HowtoBiXenonProjectors.htm