:headshake My 2000 xtera has a cd/chg button on the factory stereo, i know that does not mean that it has one but if it did where would i be located, and how do i use it? I also have an 1997 alpine 6 disc changer, what would i need to connect it to my stock stereo?

The changer was an optional accessory. When installed, it was in the cargo area.
http://www.xterraparts.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=XTR01-6CDKT