when you pull it out those three inches away from the dash, unplug the wiring harnesses from each HVAC Climate Control piece. There is 3 or 4 harnesses to unplug. Then you should be able to pull away completely and unscrew the hvac controls completely and remove them from the radio bezel. Reverse the process to install the new one. Dont worry about remembering where each plug goes, they are all diff. shapes that only fit in one spot. Good luck, keep us posted on how u do.