Hey Road Dog,
Sorry can't help with the filter like the other guy, sounds messy. Depending on the year tp sensors might just be the problem. If its an 05 you might have the fm sensors which will make you a lucky guy cause there are a lot in stock, an the dealer. If it's an 04 with AM sensors there are after market which might be compatable with chrysler TPM's. again unless you own a DRBIII Computer ($3000.00) the dealer is the only one that can make the computer learn the TPM codes for each individual TPM and it's location. IE front left or right tire. Get it done don't let the light burn out. Good luck.

P.S. TPM batteries last only about 5 years , change them all cause the light on another may come on within days once they start going.