The AU-5400 is an installation accessory used in compatible vehicle electronics applications where diode isolation may be required. It helps support cleaner wiring integration for remote start, security, and accessory installations.

Diode Installation Accessory

Supports compatible automotive wiring applications that require diode isolation.

Helps Control Electrical Feedback

Can help prevent circuits from feeding back into each other in supported installations.

Security and Remote Start Support

Useful in compatible security, remote start, or accessory wiring setups.

Professional Installation Recommended

Should be installed by a qualified technician.