A:Answer I had to wire one for my dads 2019 f150 and it too doesn’t have an aux port. I actually needed several other adapters to make it run through a low grade FM channel. Basically the truck is aluminum and magnet won’t stick to the top of the truck, nor did it have a preinstalled one, so I had to mount it on the dash. With the 12v adapter for the back of the radio I was able to make it with hidden wires and have the XM antenna not be an eyesore. Here are the adapters I bought at Best Buy, in case you run into the same issue.
Metra antenna cable adapter
Peripheral 12V DC adapter
Sirius fm direct adapter
Metra factory radio universal antenna
Hopefully this helps you with installation and hiding the wires.