If you want to save loads of money....find the exact model you want.
Go to
http://shopping.yahoo.com
Type in the exact model number and you should see a big list of stores offering the CD player for huge savings. These online stores do not advertise and do not have a retail store to pay employees so you can save a lot of money there.
Then take merkers advice and install it yourself, or find a friend that is install savvy.