on a '96 it is a black box in front of the master cylinder. the t/c relay is on the rearward row i believe 2nd from fender. the horn ,t/c, and i think trailer lights are in that row and all are the same kind of relay. on mine i swapped out the horn with the t/cwas supposed to again so i bought a new one for 15 bucks and took the horn one back out and put it where it was to start with and put the new one in the t/c slot. not sure about an '06 but dodge usually doesn't change location of fusebox so i bet its still in te same location on an '06. let me know