There are after market CD players that are a direct fit for our cars. I know Pioneer has 2, DEH-P77DH & DEH-P44DH. They're din & half radios made for GM & Chryslers with our sized openings. I put one of these in my dad's car, no cutting or butchering of any kind, which inturn made him happy.
The Metra part #'s needed for the wiring harness & install kit, if you choose to go with a standard din radio, are;
Wire harness 70-1677-1
Install kit 99-4544