How to Hook Up a Stereo Amplifier Remote Wire

Category: Tech

How to Hook Up a Stereo Amplifier Remote Wire

There are several connections that must be made when you're hooking up a stereo amplifier in your car. The amplifier requires a power connection to the car's battery, a ground connection to the vehicle's chassis and a signal input to amplify. Not to be overlooked is a simple connection called the remote wire. The remote wire is a switched 12-volt connection that turns the amplifier on when the stereo is switched on. This must be connected when the amplifier is installed or the amp will not operate.

Things You'll Need

  • Car stereo
  • Wire strippers
  • Single-conductor 18-gauge insulated wire
  • Crimp cap
  • Crimp tool
  • Screwdriver
  • Hex wrench
  • Amplifier


  • Identify the remote wire in the output wires of your car stereo. The remote wire is blue with a white stripe.

  • Remove 1/2 inch of insulation from the end of the remote wire with a set of wire strippers.

  • Cut a length of single-conductor 18-gauge insulated wire that will be long enough to reach from the car stereo's back panel to the location where the amplifier is installed. Because cars and amplifier locations vary, there's no one correct length. But take into account how you'll route the wire--it's usually best to go along the edge of the car body, under the carpet near the scuff panels.

  • Remove 1/2 inch of insulation from each end of the wire you cut in Step 3.

  • Twist together the bare end of the remote wire and one end of the wire from Step 3. Slide a crimp cap over the twisted wires and crimp it on with a crimp tool.

  • Route the wire to the amplifier.

  • Loosen the terminal marked "Rem," or "Remote," with a screwdriver or hex wrench. Slide the bare end of the wire into the terminal and tighten the terminal to hold the wire securely in place.

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