In my daughter’s 1998 TJ, I installed a heater box to switch from slider AC controls to knobs. I obtained a dash wire harness from a 1999 TJ. All the plugs match up (I also got the odometer from the 1999 TJ), except for one. The round plug is for my daughter’s Jeep now. How far back do I need to splice to replace the rectangular end of the 1999 wire harness?
Below I will give you detail on how to change your 97-98 sliding knobs to turn style for your heating and cooling. I will tell you what I did; other years might work, but I will only tell you what WILL work. I have a 97 Sport, 4.0L manual 5spd.
I decided to do this because I disliked the sliding style, and I had all sorts of trouble with my blend doors not working properly. I also wanted to replace my heater core and evaporator. With that being said I spent $200 on a salvage heater assembly, instrument cluster wiring harness, vaccum line harness, and the turn style switches (all from a...