[foxtrot3]

Hi. Has the car ever had an aftermarkt radio fitted to it? Quite often you will find that the red/white wire under the steering column gets cut so it can be used to work with a different stereo. Have a look in the white six pin plug at the base of the steering column shroud. If the wire is OK you can use it as a test point with a multimeter to see if the resistance to earth changes when you push the buttons. Cheers MD