i need some ideas on how to get around using the heater controls on my 86 GTS. the person who owned it before we got it evidentally got pissed pretty bad and punched the HVAC control panel. i know it got punched because when we first got it there was blood on the dash and on the carpet. the fan switch along with the sourch and mode switches work. only problem is the mode switch is a bit shifty. the real problem is the temperature switch is pretty much shot. it does nothing when you try to move it. i need to know how to control the temperature manually. like how to open the heater care, etc. never really have had a lot of experience with HVAC so i'm asking you all to help me out a little. plus the face is kinda screwed so if someone could tell me what order the modes are in i would appreciate it. thanks!