Q&A

The first thing to do is to isolate whether it is the alternator or air conditioning compressor that is actually making the noise. Listening to the compressor and alternator with a mechanic's stethoscope may isolate the noise, removing the belt and spinning each component separately would be best. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online
Alldata would be best. Replacing the belt is easiest, replacing the alternator may be doable but will not be able to replace the a/c compressor yourself.