[130fe]

No, you won't need that one or the white one next to it. I have an LS3 with the dakota digital VHX gauges and used their OBD2 interface to get the tach and water temp. I removed several of the wires and used the slots for other components- Oil pressure, VSS and check engine light (off of my GMPP harness) and reverse lights wires. I also wired the DSE wiper motor through the bulkhead. I did not use the larger red wire going from the alternator to the starter, my GMPP harness already had it. The thing I like about the AAW classic update harness is that you can customize it for your particular application. I think I only have 1 or 2 open slots now between the engine and front light harness plugs.