Metra XSVI-5524-NAV Retention Harness Ford 11-Up Provides accessory (12 volt 10 amp) Retains R.A.P. (Retained Accessory Power) Used in non-amplified systems or when replacing amplified system Provides NAV outputs (Parking Brake, Reverse, Mute, and V.S.S.) ASWC harness included (ASWC not included)