Yes they are interchangeable.
No, Chevy changed the wiring harness in 2003. and the way it is mounted, it can be made to work though.
Look for a stereo amplifier with speaker-level inputs that can connect directly to the stock stereo unit in your 2000 Impala. Make sure the amplifier's power output matches the power requirements of your stock speakers to avoid any damage. Additionally, consider an amplifier with built-in crossover features to fine-tune the sound for your specific setup.
With an adapter Yes.
No it will not without some modification. Your stock opening is 1.5 din. So you will need to do some cuting to your stock bezel, and modify your mounting bracket.
There Is none.
crutchfield
NO
stock brand of tires for the 2000 chevy silverado 4x4 ext cab
Yes, an amplifier can be installed on a 2000 Chrysler Sebring factory with a CD. Provided the CD drive is working perfectly.?æ
4L80E---4L85E
yes it does is the same from 1999 to 2002 they change on 2003 and up