I was looking to buy a 1989 ram 150, for parts for my 1986 100. dose anyone know if the ac systems are the same and the entire dash the same? I was going to turn my truck into a ac truck, and it needs everything, plus change dash so I can have all the proper vents. One thing I notice is I have a small pocket in mine dash, and the newer one has electronic board. not sure if I can take it out and put the one in from my truck, and around my speedo has a wood grain look and the newer one is color of dash, will mine come off and go into the new one. Thanks in advance