how hard is it to replace the wiring harness on a 02 suburban? i have a chance to pick up the 02 real cheap but i would like an idea of what i would be getting into. if i don't get the 02 i have a 97 that i was getting before i caught this deal. it seems that all the trucks in my area ether looks good and have running issues or look like crap but runs well. i have the skills to do the work. i would like to replace the harness where it is at.