New guy here but Ive got a good rep on other gm fullsize forums .
JL Audio CL441DSP with CL-LSA "Load Sensing Adapter." I installed this on my dad's truck a few months back but now that hes losing the truck Im selling this. This puppy lets you keep the stock HU and cleans and equalizes the OEM signal and will let you run amps for your speakers or subs. This is more than just a LOC! Comes with the calibration CD and manual. I have this boxed up and ready to go. Comes with everything you need for the install and the LSA is brand new, didnt need it. $150 shipped, MSRP is $300.
Actual pics