You remove all the switches, then the stereo, unscrew the heater controls, then the retaining screws for the dash fascia. The surround comes out easily, then you can reach round the back to pull the vac hose and the speedo cable - theres a clip you need to pinch on either side to remove it.
The clocks are held in with a few screws, remove the two/one electrical plugs from the underside, then just rock forward and jobs a gudden.