I recently upgraded my 5.0 u connect to a 8.4uaq head unit. Problem I ran into is I cannot add u connect services because they cannot find my vin. I bought my unit from infotainment.com. I was told they tie the unit to the vin. Anyone else run into this? Travel link also is not available although I have the subscription. Satellite radio is perfect but not traffic or travel link. In theory if this is the case with the vin, would a brand new unit thats not attached to a vin work? Or is it that the vin displays that the unit is not available for this car?