story: i want to swap my 6.0 into my wife's 2005 WK grand cherokee without sacrificing much of the options. the PCM/TCM have to be there for the rest of the modules to communicate and work properly. so i have to piggyback my LS1 computer onto the factory computer to keep all my vehicle functions.

i've done swaps before, but i've never had to do this. i really have no idea how i would make the 2 computers work together.