Hi,
Iv got a pioneer cd player in mine mounted where you mount the radio in the defender, Works fine,
Cd players have anti shock so as long as you arn't a tight gig and pay peanuts for the cheapest in the shop you shall get a good cd player wit anti shock.
Speakers, There are loads of places to mount them, I had a mard top and mounted them in the top rear corners, 6x9's fit, Now i have a truck cab so have mounted them down infront of the gear stick, Ok as don't do major wading, You can mount them in the roof however so i shall prob move mine soon,
Il tryand get some phototes if you want,
Me