Bought a 2019 Promaster. At the time I did not want the OE Nav / Sirius Radio option. Flash forward to today and I want the OE Nav / Sirius Radio. I installed and got the Nav to work but having fits with the Sirius Radio. I am told the BCM will not communicate with the OE Sirius portion of the radio. It would have, if I choose it as an option when ordering the truck. Does anyone know how to get the Promaster BCM to comm with the OE Sirius Radio? Thanks!!!