CD43 unit into a Rover 75?

[TriumphStag]

Hi All,

I have an aftermarket Sony head unit (an old one - it has a cassette slot) in my 75, along with a CD changer in the glovebox. All works fine and sound quality is OK. The only problem is that the steering wheel controls do not work. Now, obviously I don't expect them to, but was playing with the wiring in the centre console today and tested that the resistances on the two wires changes correctly when the steering wheel buttons are pressed, so... am thinking I would like to get a Rover head unit with a CD slot and reclaim the glovebox.

My brother has a Rover 45 parts car, with a CD43 head unit in it, which is working fine and has working steering wheel controls. Would this work in a 75? I have no doubt it would connect up and play music etc, but would the steering wheel controls work? are they the same in a 45?

Yes, there is obviously the try it and see, but I wont be going over there for a couple of weeks, so thought I would ask the guru's on here in the meantime.