Can I use a regular GM harness (One I took out of my 95 T/A) or do I need a specific one for the monte ?
Not to worried about the factory amp I just want all the speakers to work, or the power antenna since I dont listen to the radio I always use my phone or CD's

I would how ever like to keep my steering wheel controls

 

So this is what I ordered

*NEW* GM CAR RADIO FACTORY WIRING HARNESS ADAPTER 4004


*NEW* METRA 70-2021 CHEVY IMPALA/MONTE CARLO 00-01 AMP INTEGRATION HARNESS


Turns out I couldn't use the one from my T/A since the plug was divided into 4 sections, Is this everything I need? I already have a antenna adapter and dash kit

 

If you still want your chimes, you will need to buy the chime module for the monte carlo. I bought mine from walmart or it might be cheaper on the internet.