There is a trick for it but from my understanding it ONLY works on the '02-'05s. Chrysler got wind of it and made it a function of the PCM on '06+ trucks, therefore can only be "tuned on" by hooking it up to the StarScan at the dealership. Good luck talking a dealer into turning the feature on for you!!!

Here is the "fix" for it on the '02-'05s though: