How To Wire an Amp & Sub on a Mustang


Installing an amplifier and sub-woofer in you Mustang is not a complicated project and is relatively simple to complete. The only part of the project that will vary from model to model is where the screws that secure the dashboard to the frame and fire wall are located. Everything else will be virtually the same for all Mustang models. The amplifier and sub-woofer will be positioned in the trunk and the wires will be lead to the front of the Mustang. This project will take you no more than one hour to complete from start to finish.

Things You'll Need

  • Wire cutters
  • Wire strippers
  • Speaker wires
  • 8 Gauge wire
  • Screw driver
  • RCA cables
  • Place the amp and the sub into the trunk of the Mustang. Using wire cutters, cut a length of speaker wire that you will need to run from the amp to the sub. The length of wire will be determined on how you set up the amp and sub in your Mustang's trunk.

  • Strip 1/4 inch of insulation from both ends of the speaker wire using wire strippers. Plug the wire into the inputs on the rear of the speaker and guide the wire to the amp. Plug the wire into the inputs on the amp and tighten the screws on the amp inputs using a screw driver.

  • Cut a piece of 8 gauge amp power wire about 12 feet long using wire cutters. Strip 1/4 inch of insulation from both ends of the wire using wire strippers. Connect one end to the amp and tighten the connection using the screw driver. The other end of this power wire will be routed up to the car battery and attached to the positive terminal in a later step.

  • Cut and strip the ends of another piece of 8 gauge wire about 5 feet long. Connect an end of that wire to the connection on the amp the says "GRN" or "Ground". Tighten the connection on the amp using the screw driver and connect the opposite end of that wire to the metal frame. Use a metal screw that is already in place on the frame to secure the wire.

  • Plug a 12 foot RCA cable into the corresponding connections on the amp. Guide the RCA cables and the power wire along the passenger side of the Mustang and up to the front. Pull the Mustang's passenger side floor cover off of the fire wall and remove the rubber plug from the Mustang's fire wall.

  • Remove the screws from the side of the dashboard on the passenger side using the screw driver. Pull the dashboard away from the fire wall to gain excess to the rear of the stereo. Plug the RCA cables into the rear of the stereo and reinstall the dashboard to its original position.

  • Guide the amp's power wire through the hole in the fire wall along the side of the engine compartment and connect it to the positive battery cable. Make sure that the power wire has no contact with any component inside the engine compartment that produces heat.

Tips & Warnings

  • Do not connect the amplifier until the amp is properly grounded to the metal frame of the Mustang.

Related Searches


  • "Haynes Xtreme Customizing In-Car Entertainment (Haynes Manuals);" John Haynes; 2003
  • "Ford Mustang: 1994 thru 2004 (Hayne's Automotive Repair Manual);" Ken Freund; 2008
  • "Ford Mustang 2005 thru 2007 (Haynes Repair Manual);" Ken Freund; 2007
  • "Ford: Mustang 1989-93 (Chilton's Total Car Care Repair Manual);" The Nichols/Chilton Editors; 1996
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