Sorry for the delay. We lost power Sunday and got it back late yesterday due to the weather around Houston. Today it was finally above freezing, big 34 degrees. It was Fg cold. Good thing you can run an F150 for hours at a time, no issues.
The shark fin antenna is for AT&T FordPass service and SiriusXM. The stick antenna? Which one are you referring to?
Hotspot antenna is built into the TCU Modem (FordPass) on the circuit board. If you have Hotspot, there is a diversity AT&T receive only antenna mounted up high in the vehicle.