I have a 1990 Toyota 4 runner and i am in the process of installing xm radio and i need to get to the back of the deck to hook up a couple of wires, my question is i cant figure out how to remove the pannel that surrounds the head unit. I dont want to break anything. I had a 1998 Tacoma and that was easy to disasemble and remove the head unit from. I have installed many head units in different vehicles, but this one seems tricky? Thanks for your help