I recently decided to upgrade my year 2001 w203 mercedes benz. So I bought a dashboard, glove box, armrest, AC control Unit, radio unti all from a year 2005 merces w203. My mech has installed all the other things except the ac control unit, radio unit and the other control unit on top of the radio with the Hazard button and chair/doors/door controls. He says that the radio doesnt fit well and the wiring for the radio unit is different. He says that the radio needs a holder. I am not sure the radio needs a holder. I want to ask; Is there anything that can be done to fit the ac controller and radio unit on my car?
I am really desparate because if the three can be fitted, the car would look a pretty good upgrade. Please help.