the 05 interior is much better IMO, for more than a few reasons, the main one is I absolutely hate the seat material in the 06's its like glorified canvas, it stains with rain drops hitting it, it looks very very cheap like something out of a base trim work truck model. its so bad that alone might have kept me from buying and 06 and maybe even a dodge for that matter. the plastic the interior is made out of sucks, I don't know what they used but you can scratch it very easy with just your fingernail, my door panels and lower dash look hammered from carrying normal things and having them rub while driving. the cup holders on the floor pretty much suck, that cubby bin on the floor is just what I thought it would be a debris collector. how any one could say its better than the mammoth dash folding cup holder is beyond me. I think it would be much better to just have carpet over the center hump. if my truck where totaled today I think I would look for an early 04 model. I like the wood accents and the way the radio looks in the 06 but that is about it