for the actual arm i think you have to pop the rear defrost and the flasher buttons out and then there are a couple of screws going through it towards the ceiling. and it should pop out of clips. but on the slider, the cable should go through the fire wall and to a hot water valve in the engine compartment right under the intake, mine was pretty stiff to. i just did a motor swap and had the heater hoses off of course and now it's alot looser. for the better. i didn't mess with it though. go figure. you should be able to lubricate both cable ends with wd-40 or white lithium to help that prob. though