So I recent bought a 2009 Sierra with the 5.3 LC9, the only issue wrong with it is that it’s going to need a complete engine harness as rats have torn through it, will a harness from another Sierra fit? Or does it have to be specific, I found one on eBay, only difference that it was meant for a 5.3 LMG, mine has the LC9, both trucks are 4x4