anybody ever install one of these?
 

http://www.highliner-headliners.com/

looking at one for my '77, as i dont really want to cut it up for a cd player or speakers. of course the speakers that are in it would have to go, and jsut use the shell. would this work with factory headliner trim too?

ive got one in my 82. I dont know how the trim would differ but my trim is still up. i can get pics if you need them.

What are the speaker sizes and how much does it cost?

it holds 4 inch speakers and i got mine from LMC (no longer available) it was like 250

they've just been re-released, so they are available once again. pics would be great.

Palco bought those. I am talking to them about adding their products. From what I remember reading they will bolt up with the existing trim pieces.