The rubber seal on my old one was busted so I picked up a new quarter window at a junk yard. I cannot figure out how to install it though. I'm guessing I need to take off the back interior panel, I started trying and popped it out along the door frame then just couldn't get it off in any more spots and didn't want to force it. I'm guessing I need to remove the seats to get more access? I have instructions on how to do that but how do I get the rest of that interior panel off? One it's off I'm sure the window will be easy to replace because it's just unscrewing the three screws that hold it to the mechanism, I know since I see the three holes on the new window. Can anyone describe, or have instructions to getting off that panel?