What sort nof CD changer fits a Volvo S70 and what do you need to do to fit it Can you do it myself or is it a specialist job?

Can you locate a constant 12volt and a ground in your car? If yes, then you can do it yourself. The factory radio is made by Alpine so you will need and Alpine changer and an Peripheral Electronics adapter. See this page for details http://peripheralelectronics.com/periph_products/cd_changer_autos/instructions/VOLIL.pdf. I have a 98 Volvo S70 GLT. Virtually any Double Din receiver will fit - though some may require a wiring harness and trim kit. It is very easy to install yourself.