Why won't my Ford Focus' CD player work?

When I press the button for the CD player in my 2007 Ford Focus, the 'aux' sign comes on and CD player does not work. It's been changed once already by the dealer. What's wrong with it?

How often should I re-gas the air con on my car?

I have not re-gassed the aircon on my 1999 BMW 7 Series in four years but it is still ice cold. Should it be checked anyway?

What estate car with a manual handbrake and traditional key do you recommend?

I'm looking for an estate car with a manual handbrake, traditional key ignition and a CD player (preferably CD autochanger). What are the most recent cars you would recomend?

Can you buy a new car with a CD player?

Are any car manufacturers supplying cars that have a CD player, as well as radio and in-car entertainment systems ?