Maestro HRN-RR-FO1 Plug and Play T-Harness for FO1 Ford Vehicles Retain the factory steering wheel audio controls and amp with a new car stereo for select 2006-up Ford, Lincoln, Mercury, and Mazda vehicles Allows installation of a new receiver in select Ford-built vehicles (also requires the Maestro ADS-MRR module) Displays engine performance data on touchscreen with select Alpine, JVC, Kenwood and Pioneer receivers retains the use of your steering wheel audio controls and factory amp