whats involved in replacing the blower motor resistor on 2003 Dodge Ram Van 2500

my work van's heater & a/c only blows air with the fan on high. i bought a new blower motor resistor, i hope will fix the problem. so how do i change it? do i get to it under the hood or remove the center console?

Asked by for the 2003 Dodge Ram Van 2500
easy. under the hood by the blower motor on the passenger side.