Where is the backup light switch on a 1997 Dodge Neon?

It's mounted on the front drivers side of the transmission. If you are looking from underneath the car, it is between the transmission and the radiator, it will have 3 wires extending from a rubber boot. There is a rigid hose directly in front of it. You will need a 1" box end wrench to remove it and replace it, as the rigid hose makes using a socket on it very difficult if not impossible to do.