Hello! I’m new to the forum. I haven’t found exactly an answer to my question so I figured I’d post here. I have a 99 2 door Tahoe that I’m LS swapping. I am using the x max so it’s plug and play with the motor and Trans. But I’m trying to figure out if I need to keep the stock ecu for my gauges, lights, and stuff like that. I am currently in the middle of tearing down the stock harness and cleaning it up based off the lt1swap website. I just needed clarification on if I needed to keep the stock ecu for my ac controls, lights, gauges, etc or if I could just get rid of it all together. ALSO, which wire did y’all tap the 12v key switched source from the Holley into?