miGenie wirelss room thermostat?

Just installed the MiGenie wireless room stat and programmer. It all goes through a Honeywell sundial wiring centre. The problem I have is what do I do with the original wired room stat, do I just disconnect it at the wiring centre or do I need to put a link in there somewhere? The wired stat seems to be overriding the wireless one. C/H only works via the wired stat. Wireless signal is very good. Help please.