The job wasn't nearly as bad as I thought-It was really pretty easy. I did the first seat by myself, and had help witht he second one (positioning the seat back)
Here is the part i got from the dealer, it was $16. I used two per seat, but you can most likely get by with just one kit per seat. Make sure your jeep's build date is applicable to the TSB!
-5019769AA Heated Seat Repair Kit (One kit per heating element)
0800401B - HEATED SEAT - INOPERATIVE
Date: 12/20/01 (supersedes 0800401A dated 03/01)
Model Year(s): 1999-2002
Description: Heated seat inoperative. On some vehicles the heated seat may be inoperative due to an open circuit in the seat cushion heating element.
Details: This bulletin involves installing a kit to repair an open circuit in the heated seat heating element circuit. Using a digital ohmmeter, check the resistance across the four way heated seat feed connector under the seat. The resistance between terminals “A” and “B”should be 0.90 ohms to 1.90 ohms. If the resistance value falls outside of this range, perform the Repair Procedure.
NOTE: SOME VEHICLES USE CARBON FIBER HEATING ELEMENTS. CARBON FIBER HEATING ELEMENTS HAVE A RESISTANCE OF 10 TO 14 OHMS IN THE BOLSTER ELEMENT. SEATS WITH CARBON FIBER ELEMENTS HAVE TWO CONNECTORS AT THE BACK OF THE SEAT. A TWO WAY CONNECTOR AND A FOUR WAY CONNECTOR. CARBON FIBER HEATING ELEMENTS ARE NOT SERVICEABLE AND REQUIRE REPLACEMENT OF THE SEAT COVER.
5019769AA Heated Seat Repair Kit (One kit per heating element)
5072485AA Heating Element - Seat back (2001 Vehicles, see Note below)
5072486AA Heating Element - Seat cushion (2001 Vehicles, see Note below)
The heated seat repair kit, P/N 05019769AA contains detailed installation instructions. Follow the instructions provided in the kit for installation. Refer to the 2002 Grand Cherokee service manual, publication number 81–370–02064, page 8G-14, for instructions on the replaceable heating elements, P/N 5072485AA and 5072486AA).
1999 Trim code DL: Use 5019769AA on vehicle built before Nov. 17, 1998. Vehicles built after Nov. 17, 1998 - replace seat cover