Metra BT-1721-A Aftermarket Bluetooth Integration Harness for Honda/Acura 1998 and Up Harness allows for the installation of a compatible Parrot Handsfree Bluetooth cellular kit 20 PIN Rectangular light blue female connector on one end of the adapter 20 PIN Rectangular white male connector, 16 PIN Rectangular black male connector (has two separate 8 PIN Connectors), Black connectors plug into the Parrot harnesses and the light blue/white connectors plug into the vehicle's factory wiring For select 2003-Up Honda vehicles 16 PIN rectangular black female connector on the other side of the adapter