I know this is a bit late, but one of my buddy's mothers just bought a 14 wrangler and he was doing research in adding a remote start to it as well. It turns out there is also a plug and play kit from chrysler that attaches in series to the ignition under the steering wheel and thats the whole install...
Just some options for people that may want to keep it with factory parts.
Im assuming there is a kit for your jeep as well, but I cant imagine the same one would work as you would need a delay for the glow plugs before cranking immediately. I would like to think its available though as the 2008 Jeep Grand diesels had an auto start...
2001 WJ Limited NV247 4.7
2008 KK Limited MP253 3.7
2008 WK Limited NV245 3.0 CRD