I have a 2009 suburban 1500 4x4 with LC9 motor and 6L80 trans. I was told by a local repair shop the 2011 LC9 VVT (trans was also 6L80) they had was capatable and purchased it with the harness and ECM. I finally got time to work on it. The harness is not plug and play, transmission and transfer case plugs are not the same or same number of connectors, nor for fuse box. Any way to make this work or am I hosed?