hey guys, lasted 6 months without a monte, but now I'm back. picked up a 72 custom with under 40k on the clock, but it's had more mice in it than people!!! bought a dynacorn blower box, but now I realize I need the inner heater box also. have any of you had any experience with these boxes ( inner or outer ) or should I start scouring for a used one??? also, I've seen the headliner instructions, have any of you been successful installing your own headliner?? this car's starting to nickel and dime me to death!!any help would be appreciated!!