It's my first car, so I've never changed radio players before. In my current motor, there's a casette player. I want to replace it with a cd player. Am I right in assuming that if I bought a cd player off the net, it would come with the entire device instead of just the front end? Really stupid question, sorry - just that my sister's boyfriend buys new cd players for his motor all the time and it only seems like he's just getting a new front-end and changing that around with each new purchase.