To be certain, you should:
* Consult a repair manual: A repair manual specific to your 2000 Dodge Caravan will show the exact location.
* Check online forums: Search online forums dedicated to Dodge Caravans (like the Dodge Caravan forums on various car enthusiast sites). Someone may have already posted pictures or descriptions of the location.
* Compare pictures: Find pictures online of the AC system on both a 1999 and a 2000 Caravan and compare the locations.
Relying on assumptions could lead to incorrect identification and potentially damage to the system. It's always best to verify the location using reliable sources before attempting any AC work.