How hard would it be to put a different cd player in my 2003 Monte Carlo SS ??

Did you check fuses and relays first? Diagnose first, then repair. A new motor comes after you connect 12 volts to the old one and see if it works.

https://www.google.com/search?q=2002+chevrolet+ss+monte+carlo+seat+not+moving+forward

Fuse Box Diagram Chevrolet Monte Carlo (2000-2005)

https://fuse-box.info > chevrolet > chevrolet-monte-carl...
2000, 2001, 2002, 2003 - Here you will find fuse box diagrams of Chevrolet Monte Carlo 2000, 2001, 2002, 2003, 2004 and 2005, get information about the ...

If you are driving the car and it wont start after driving awhile. Do a wiggle on the CKP (crank position sensor) this sensor is located at the front main engine pulley, I am seeing a lot of loose male to female connection shut car off.

You can view it at the12volt.com and/or installer.com

i have a 2003 monte carlo and the wires came out of the plug under the seat. im trying to put them back in so my seat will be able to work. there are 12 wires that make up 6 connections. i need to know what wires go together. the wires are red with blue strip, red with green strip, red with white strip, yellow with blue strip, yellow with green strip, yellow with white strip, light green, green, peach, blue, light blue, and yellow.

yes it is. it is meant to inform you that your loosing traction.

just hold down the clock button until it starts to flash on the cd player and you can reset the time and date with that function

Nope.

The ck engine light should not be ignored, what sensor was shown to be bad ? Have it scanned again and replace the sensor that is bad if it still runs rough you might want to consider a tune up. Plugs, wires, fuel and air filter's and clean the throttle body with some gumout. It could also be the IAC motor Idle Air Control. Good Luck

This may be a bit late to help, but I just had the same problem yesterday. Same car (2000 Monte Carlo SS), but mine is just the CD/radio stereo (no cassette). I was able to solve it by pulling the fuse for the radio (it's in the right-side panel) and letting it sit for a minute. After putting it back in, the CD player made the disc ejecting sound one time (no "check CD" message) and stayed off. And now it seems to be working fine. We'll see how long it lasts, though.

Just took one of those off my nephews car...usually the handle has a small clip at the front bottom that needs to be pulled out. PS threw the mag handle in the garbage (because no button, and handle kept falling off)