Is it an all in one China unit?
If so, you can install any GPS software you wish, TomTom, navman, Garmin etc. I did the same for my ford focus and it work tremendously. Played everything, supported every format, dvb t tuner, as well as rear LCD screens which I also purchased. I have a thread somewhere in another forum about it. I'm guessing the Jeep is the same, as the China mob I purchased from had one for the Jeep GC wk2.
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