Adding OEM Rear Park Aid Backup Sensors to 2009-2014 F150 Part 1

parts.ford.com was the least expensive option for new OEM items. It was even less expensive than amazon.
Park Aid Module BL3Z15K866C
Park Aid Sensor 9L3Z15K859D
Retainers
- Left Inner 9L3Z15A862H
- Left Outer 9L3Z15A862K
-Right Inner 9L3Z15A862G
-Right Outer 9L3Z15A862J
Trailer Hitch Wiring Harness W/ Reverse Park Aid 9L3Z15A416B
Trailer Brake Controller BL3Z19H332AA (2011-2014)