• Installing Car Speakers and Subwoofers: A How to Guide

    Installing your own car speakers and subwoofers is a great way to keep price down and quality up in your sound system. With a few subwoofer wiring tips, tools and manuals, you should be able to install your own speakers and subwoofers (with a car audio amp to power them) in a few easy steps. A trip to a local car audio shop should help you prepare with all of the parts, tools and advice you might need.


    • Superglue
    • Hairdryer
    • Zipties
    • Soldering iron
    • Phillips head screwdriver
    • Wire cutters
    • Pliers
    • Door poppers
    • Multi-purpose utility knife
    • Masking tape
    • Sandpaper
    • O-ring ends
    • Female spade connectors
    • Aamp and speaker wire

    Step 1: Assemble your Equipment

    Have your speakers, subwoofers and amp ready. Read all of the manuals and map out where you are going to put them. Speakers will likely go into the doors, while the amp would go best in the trunk or under a front seat. The subwoofer needs to be in a place that corresponds to its size.

    Step 2: Detach the Old Speakers and Equipment

    Remove the dash around the car stereo. Take out any screws holding the car radio in so you can pull it out and unhook wires from the old equipment. Undo the power source from the battery. Unhook and remove the old equipment. 

    Step 3: Connect the New Speakers and Amp to the Radio and Amp to Subwoofer

    Remove the door panels with the door popper. Run any wire through the car so everything will reach from the stereo to where you are placing the new accessories. For the amp, use an o-ring to connect it to the power cable and the system firewall. If the amp is going in the trunk, run it underneath the floor molding at the bottom of the doorjams.

    Sit the speakers into their slots in the doors. Hook the wire you ran to the door into the back of the speaker and the back of the stereo. Solder the wire, use superglue heated by the run or with a hairdryer to secure it all in place and pop the door back on.

    Step 4: Connect the Amp and the Subwoofer

    Do the same for the subwoofer, being careful to run the wire under molding or flooring when possible. When the lengths are determined, twist and solder ends and secure them all in place similar to the speaker wires. The subwoofer’s wires run to the amp that is already connected to the power source and now to the stereo. Make sure connections work and replace any floor paneling necessary.

    Step 5: Test Connections and Replace Radio

    Connect everything to the back of the radio unit. Re-connect the power cable and re-install the radio. Make sure all of the new accessories work properly then re-screw in the radio and replace the dash. Turn the car on and try it all together.

    If you have any problems, make sure whenever you work inside the dash, the connector cable is not attached to the battery. If you are unsure about an electrical connection, check with your local car stereo installers and see if they have any insight. Even if you just have to have them double-check your work, you still have saved a good deal of money and time without your car.