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

• Suits: Most Hondas '86-up.
• ISO connector.