My 02 is a JTEC it only has 3 plugs, it was a realier 02 build. but here's the issue i just ran into, the 5.9 engine wiring harness will not plug into the 4.7 underhood fuse box. 2 different connectors, so im guessing that would be the pin out i need? or do i need to take the fuse box wiring harness out and switch it for the 5.9 fuse box wiring harness? which if that be the case then there is another connector issue including the security box on the drive kick panel. Im trying to inagrate the the 5.9 features like the MPG and Compass that are on the over head console into the bare bones SLT 4.7 body doesnt have. I didnt think i was gonna have wiring issues because i had assumed that all the harness's were the exact same. ( Wiring is not my fortai). and i have 3 computers I have the orignal 5.9 Computer out of my wrecked 00 DDurango, I have a computer that I pulled out of an 01 Durango 5.9 that was in the junkyard, and i also have the 4.7 computer that was the orignal to the 02, all are 3 plug, 2 are 5.9 and 1 is 4.7, which would would i have to have programed Im guessing or re-flashed? or which one should i use?