This Package Includes the Following Items:
1 x Metra 95-7870T Double DIN Radio Provision Installation Dash Kit - Taupe Finish for 2005-Up Honda Ridgeline Vehicles
1 x Acura Honda Suzuki Factory Stereo Radio to Aftermarket Radio Harness Adapter
1 x Harmony Audio HA-40HD10 Honda Mazda Factory Radio to Aftermarket Antenna Adapter

Metra 95-7870T Double DIN Radio Provision Installation Dash Kit - Taupe Finish for 2005-Up Honda Ridgeline Vehicles:

Acura Honda Suzuki Factory Stereo Radio to Aftermarket Radio Harness Adapter:
Specifications
Simply plug and play installation, no cutting required
Designed for standard audio system, premium audio may require different harness
Clearly marked color coded wires
Ideal for aftermarket radio
18 gauge high quality wire
Direct OEM fit connection

Harmony Audio HA-40HD10 Honda Mazda Factory Radio to Aftermarket Antenna Adapter:
Specifications:

Simply plug and play installation, no cutting required
Adapts factory antenna plug into aftermarket style
Ideal for aftermarket radio
Direct OEM fit connection