You're welcome.
From your comments about blower motors, I think you must actually be referring to the A/C Heater Control Switch... right? But no matter, the same info applies as stated before... 2003 and 2004 appear to use the same connectors.
FYI...
What Dodge calls the "Multi-Function Switch" is the switch on the steering column for the wipers and turn signals.
The A/C Heater Control Switch has two connectors... a 16 pin and a 10 pin. The 16 pin connector is not available separately, but the 10 pin connector is. The 10 pin connector kit is Dodge part number 5183476AA and is currently listed on
Mopar Parts America for $29. 53.
Regards,
John L.