blower resistor

I need to know the location of the blower resistor on my 1999 Dodge Conversion Van. The fan will only operate on high so I think the blower resistor needs replacement but im not sure of the location. Can someone help me out. Thanks

When you open the hood on the left side is the blower motor case. On this case is a wire connected to a devive that kind of looks like a hole cover. It is held in place by two bolts and after they are removed it pulls right out. If I remember it costs about 25 bucks and takes 5 minutes to change.