My truck is a bit anti accessory...no bed liner, no carpets (vinyl), no power windows, no power door locks, no cd/aux/bluetooth - am/fm only. 2013 GMC Sierra WT - everything I need (a bed, tow hitch, 5.3L v8, 4x4, and a back seat) and absolutely nothing I don't need ha. Bought it just over a year ago with 34k miles on it, great truck.
Looking into doing a DIY bed liner with UPol Raptor, and I might pick up a used cargo cover off craigslist. Keeping it basic, which the inner car guy in me has a hard time doing!