Is It Possible To Fit A Cd Player Into My Radio/cass Equipped Zafira And Still Use The Dash Display And Steering Wheel Controls

Yes it is.. you could buy the Siemens VDO CD500 player which fits exactly as you need (390€ in Italy). Other models can be used too, but you have to buy a special cable interface to let your player "talk" with the steering wheel commands. In this case though, the display is the player's one, and not the dash display...