2003 Pontiac Radio Upgrade or Replacement

[GhostPlays880]

I recently got my Bonneville it is a 2003 SLE with a CD Radio and I replaced the radio lights as they were halfway dead but I realize that CDs have a better quality than my Roav FM Transmitter and I was wanting to put a AUX Jack in my radio hopefully through the CD drive or better yet through the Cassette plug as I have plug just my radio is just a CD player one but I was also wanting to maybe replace the factory radio if I could find one that is a decent price that has Bluetooth, Backup Camera port, CD and a screen that could show me what song is playing but that is only if I could not cut up the slot of the car as I am experienced but I'd rather not mess up anything as I have heard when you cut it can mess up the dash lights Thanks for any answers