We just bought a 2021 Elevation 1500 5.3L. We also purchased a new travel trailer. We were told that we had the trailering package on the truck. We thought it was the max trailering package. Is there a way to install the max trailering package on our truck? We like the camera features on it. GMC already installed an after market Curt brake controller which is awesome but I didn't want a separate camera monitor and want to use the gmc 8" monitor. Can that be done?