Just got back from the 3rd dealer for the Low Bass problem. The dealership actually took me out and let me talk to the Tech. He noticed the problem, he flashed the amp (TSB 08-123-18) as i sat there and talked to him. After the flash still Low Bass, he checked for other updated and he found one that he said needed to be downloaded to an USB the uploaded to the truck, I'm going back to have that done. As I waited for the paperwork and the truck to be pulled around I asked if i could listen to a Limited that was on the lot. I got the key and this one sounded alot better. I checked the software version, bootmico version and eq version where all newer. I showed the Tech and he said he hopes the download will update to the new version.
Photo is from the dealers Truck.
Photo is from the dealers Truck.