In car audio systems, a remote wire plays a crucial role in allowing the head unit to control the power supply to the amplifier. This wire establishes communication between the two components and ensures that the amplifier turns on and off properly. Understanding the purpose, benefits, and correct wiring of the remote wire is essential for achieving a seamless and efficient car audio experience.
1. Function of Remote Wire:
The remote wire serves as the trigger that turns the amplifier on and off. It carries a small amount of current when the head unit is powered on, signaling the amplifier to turn on and start amplifying the audio signals. When the head unit is turned off, the remote wire stops supplying current, causing the amplifier to power down as well.
2. Benefits of Using Remote Wire:
a) Centralized Control: The remote wire allows you to control the power supply to the amplifier from the head unit, providing centralized control over your car audio system.
b) Energy Conservation: By automatically turning the amplifier off when the head unit is not in use, the remote wire helps conserve battery power and prevents the amplifier from draining your vehicle's battery when the car is parked.
c) Increased Amplifier Lifespan: Properly connecting and using a remote wire ensures that the amplifier only operates when necessary, reducing stress on its components and promoting longevity.
3. Wiring the Remote Wire:
a) Head Unit Connection: Connect one end of the remote wire to the "remote" terminal on the back of the head unit. This terminal is usually labeled as "REM," "Remote," "Amp Remote," or something similar.
b) Amplifier Connection: Connect the other end of the remote wire to the "remote in" or "remote turn on" terminal on the amplifier. Check your amplifier's manual to locate the appropriate terminal.
Important Notes:
a) Use the specified remote wire provided by the amplifier manufacturer or purchase a high-quality one to ensure proper functionality and performance.
b) Avoid splicing multiple remote wires together to power multiple amplifiers. Use a separate remote wire for each amplifier.
c) If your head unit lacks a dedicated remote output terminal, you might need to use an accessory power source, such as the power antenna wire, or install a remote wire converter to create the necessary signal for the amplifier.
d) Always turn off the head unit before disconnecting the battery or performing any electrical work in your vehicle.
By ensuring a proper remote wire connection between your head unit and amplifier, you can enjoy a reliable, convenient, and efficient car audio experience. This wire plays a vital role in the overall functioning of your car sound system, providing you with control, energy conservation, and increased amplifier lifespan.
