AERPRO The primary harness is the harness that plugs into your car's main entertainment system connector and converts it into a double ISO connector system (universal). After selecting your primary harness you then select a secondary harness to connect between the ISO connectors and the aftermarket head unit that you have. This is selected based on what brand and type of head unit you have.

Features

• ISO Connector to most later Toyota models, smaller 2-plug type.
• Secure Clips on ISO connectors to ensure secure and long lasting connection
• Converts vehicle specific plug to universal ISO connector system
• Provides a Plug & Play installation solution for aftermarket headunits when paired with an Aerpro APP8 Secondary Harness (some hard-wiring may still be required)