So I need some advice. I had a 2005 lly 6.6l motor and I am in the process of swapping it out for a 2004 lb7. I was told it was plug in and play with just changing the nsbu switch and the oil pressure sensor. I did all that so now I am at the fuse box and my cab harness isnt the same as well as the engine harness just where it plugs into the fuse box. Any advice would help. Thanks in advance!