Audio Systems: 2003 impala factory stereo, pioneer cd player, chevy trucks

Question
i just bought a 2003 impala base. it has only a cassette player. but i like the stereo features, like the display of channel/artist names, auto volume, etc.  anyway, I would like a CD player, but I'm not sure if I will be worth replacing such a nice factory stereo. I have a Pioneer CD player.... but would it be better to find a factory model????

Answer
pioneer or any aftermarquet is a very bad idea the vehicle will give a lot of problems with warnings and errors  it is best to keep it factory
the other idea is to find a cd player that is oem , but in that case the vehicle needs to go to the dealer to program the radio 1 or 2 hours labor fee any radio from  2003 to 2006 will work

the other option is a factory cd changer, this will work we do that all the time
radio must have CD AUX button

http://www.oemautosound.com/pc-136-54-oem-cd-changer-chevy-trucks-vans-2003-to-2...