as long as i buy a "chrysler" chipped key or fob thats not programmed, can i buy one regardless of what the key or fob looks like and have it programmed to work with my jeep?

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R.I.P 96 XJ 4x4, R.C 4.5 inch lift, 33 mt's, DD mostly built
Current 2009 KK sport 4x4, stock but not for long...

Yes, no, maybe...
The key has to have the same lines/grooves as your key. Then of course you have to have it cut.
Some of the after market "flip" key fobs locate the chip board too far away from the actual metal part of the key. (Were only talking about millimeters too far away.) When it is inserted into the ignition the computers do not read it, so the rig will start, but then dies shortly after.
If you have a 3 button fob and buy a 4 button fob, one of the buttons will do nothing.

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07 KA Light Khaki, Manual trany.
2.5" Adjust-A-Strut JBA lift, Euro taillights,
Home made; Front Tilt Hood, Roof Rack, RAM Air, & CAI.
ESP Off Switch
Take a ride on the Trō side!