I have 2 jeeps....a 1999 with a blown 4.7 engine....my daughter just totalled a 2006 hemi grand cherokee....i want to put the 5.7 hemi in the 1999....what i am most concerned about is the wiring....can anyone tell me if i can use the wiring harness for the hemi and drop everything in the 1999 or do i need to buy a different harness? I would appreciate any help anyone can lend. My email is mkeeneyspencer@gmail.com thanks !!!