can i put a 90 ls integra dash into a 91 crx si

 

Yes, but it will take a lot more work then simply bolting it in.

 

like what kind of work.. as far as the cluster is concerned can i just use my harness in the rex and look up the wiring for the teg connector and do that because im not concerned with the heater and i dont have ac. im not worried about a clock or a radio either...