I noticed some wires hanging down by the exhaust pipe the other day and slid under it to see if something came loose or whatever. Saw a mess of wiring back there that needs to be straightened out but I cant figure it out. I have 2 identical 2006 Tahoes and the other one doesnt have this box thing on it so Im guessing its some aftermarket thing, maybe somebody will recognize it and tell me what it is before I start messing with it. The wires coming out of it appear to be spliced into some of the wiring harness. In the pic its the box thing to the right of the factory wire connection under the right rear quarter panel near the exhaust pipe turnout. Thanks