it already has a pre wired area for the cd player if that makes a difference

it all depends on the cd player you get but for a pretty nice one i would say probly around 350 for the cd player and install

if you have the radio, and you just need install, i would say 20 bucks if you did it yourself...and thats just for the installation kit and wiring harness...i know best buy charges about $150 just for installation...thats insane...i did a friends radio for 10 bucks and it works fine, no problems...haha

good luck