I got the '91 DX Sedan I wanted.

The first thing I want to do is get a tach in there. Will the hatchback gauge cluster work? Or will I have to thief one from a sedan for it be compatible?

Also, I've seen Si seats in a sedan before. Is it possible to mount the rectracting seatbelt system to the side of the Si seats, and then use it all together? From what I can tell, it looks like it just bolts onto the side of the seat where the seatbelt latch goes.

Or is it not a simple thing to do? (like maybe the seats don't even bolt in and I'm a moron, LOL)