Check the seatbelt stays attached to the side of the passenger seat. That's what was rattling for me. Dealer just fixed it. Unfortunately they did not fix my alignment that has been off from the factory. I don't know if they just didn't do it (says they did) but wheel is still cocked right.
https://www.steeda.com/steeda-s550-subframe-alignment-and-support-kit.html
You don't really need the kit, but they do come from the factory not perfectly aligned in some cases.. leading to rub on one side. Ask your dealer to align the subframe if they'll do it. This isn't really exclusive to...
I got the rebranded tender from Ford Performance with the points I got from my car purchase https://accessories.ford.com/ford-performance-5-0-smart-battery-charger-maintainer
It's worked great with my car in storage this year. The three times I've gone to start the car up and give it a short...
I spent some "Ford points" on their charger. It's been working great.
https://accessories.ford.com/ford-performance-5-0-smart-battery-charger-maintainer