mine was an airbag model, meaning it had that daft black spinning ring system thing that the horn plugged into, a big yellow connection. to fit an aftermarket wheel this crap has to come off. the horn works by the two brass rings being pressed together, whereas the GTs had a simple wire set up that just plugs into a horn button connection. to buy an EP91 airbag specific kit from RHD is something daft like £150 or something, i have a link at home somewhere. so for £26 i bought a pretty button and am having it wired in instead and mounted on the dash. Phil.