I have a 2011 Suburban 2500 with RSE, DVD radio, Bose, Navigation, 2nd and 3rd row overhead screens. I got a JVC KW-M560BT from Crutchfield with a package that was supposed to retain my RSE. PAC RP5-GM31 harness. My plan was to set up an HDMI -> RCA, plug in to the RSE RCA jacks, select AV IN...