Installing a car stereo is usually something you can do yourself, and this article will provide general instructions for that. But keep in mind that some cars have more complex systems than others, so some specifics may vary. Make sure you read the user manual for your car stereo before starting to install it yourself.
Step
Part 1 of 3: Removing the Old Stereo
Step 1. Install the handbrake and remove the negative pole from your car battery
Make sure this does not occur short circuit during installation.
For instructions on how to remove the battery, see how to remove the battery
Step 2. Unscrew the trim safety screw
Carefully remove all screws before you try to pry out the trim, or the trim may break.
Step 3. Remove the trim
On some cars you will have to remove some of the plastic trim, usually starting at the bottom and working your way up.
- If you must remove trim that has buttons or drawers, remove them before you remove the trim.
- Use a lever or hand to pry the trim.
Step 4. Pull out any required components
If you have to remove certain components before you can access the stereo, do so.
Disconnect the components that are wired to the car. Snap a photo to make it easier for you later when you install it
Step 5. Loosen the stereo
Each car may have different elements that hold the stereo in place.
- If the stereo device is being held in place by screws or bolts, loosen it with the correct tool (screwdriver or nut/bolt wrench).
- If the stereo device is not held in place by screws or bolts, you will need a radio release tool. Radio release kits are usually elongated horseshoe shapes, with a loop at one end and a curved stem at the other. This tool is sold in auto parts stores.
- Insert the key into the two small slots on the right and left sides of the car stereo. You will release the mechanism that holds the stereo device in place. Slide the key into each slot until you feel the car stereo come out of the housing. After that you can pull it easily.
Step 6. Remove the stereo from its panel
You may need sharp pliers to secure the edges of the stereo and help you pull it out. Gently pull, if your car stereo won't pop out, check that you've removed all the securing bolts.
Step 7. Snap a photo of how all the cables are connected
This step is important because you can use the photo as a reference when reassembling all the cables.
Step 8. Disconnect the stereo
You'll see some wires connected on the back, and you'll need to disconnect them.
- First, remove the antenna cable, usually in the form of a thicker cable that is attached separately from the other cables. Once detached, you can more easily move the stereo device.
- Next disconnect each cable socket connector. Usually there are several connectors and you can identify them because a series of wires will be attached to each connector. The piece of plastic into which the cable is plugged has either a tab or a push button, and this will release the socket.
Part 2 of 3: Installing a New Stereo
Step 1. Match the cables
Match the car socket cable to the new stereo jack. Each socket connector is different, so you can see which socket connector fits.
- To be on the safe side, check the wiring diagrams for your new car and stereo to make sure you're installing them correctly.
- If your car stereo doesn't use cable sockets, you'll need to manually match each one. Each cable is color coded and you can connect wires of the same color.
- Connect the cable. There are two ways to connect wires, compress them or solder them. Compressing wires (crimping) is easier and faster, but soldering will give you a better and more stable connection. Make sure you use the right size tool, and don't attach the wires with tape, as the tape will dry out and come off over time. It is recommended to use zip ties.
Step 2. Install the retaining kit
If the new stereo has a separate mounting kit, install it according to the instructions (often this means attaching a metal housing sleeve to the retaining frame).
Press the tab around the metal sleeve with a screwdriver to secure the metal sleeve in place
Step 3. Connect the power source
Usually, if a cable socket is available, this connection will be made when you plug the new stereo plug into the in-car socket.
If you are not using a cable socket, you will have to plug it in manually. Find out if the car has a current source with a switch (usually a red wire) or a constant current source (usually a yellow wire). For more detailed information, go to this article
Step 4. Ground the stereo
If you are using a cable socket, this connection will be made when you connect the socket.
- If you're not using a cable socket, you'll need to locate the bolt, cable, or screw that connects the exposed metal chassis of the car. Loosen the bolts, wires, or screws and insert the stereo (usually black) ground wire and tighten it.
- Remember, a grounding connection is essential to get maximum performance from your car stereo. Stereo does not work properly if it is not connected to exposed metal. And if the ground wire connection is loose, the resulting sound quality will be poor.
Step 5. Connect the remaining cables
Attach the antenna cable and connect the stereo cable adapter to the car cable socket. Connect an output converter if one is required to make the new stereo compatible with the car audio system.
Step 6. Test the new stereo
Turn on and test the AM, FM, and CD components. Try the fade and balance settings to make sure the sound is working properly. Turn off the stereo again.
Part 3 of 3: Ending the Installation
Step 1. Push the stereo back into position
When the stereo is plugged in properly, you usually hear a click.
Step 2. Reconnect other components
Tighten the screws that secure the device, replace all cables, buttons and drawers that were removed earlier.
Step 3. Put the trim back in place, checking that all screws and trim are securely in place
Step 4. Try your new stereo again
Turn on the machine, and try adjusting the stereo to make sure it's working properly.
Tips
- Make sure you buy a device that fits your car. If you need help choosing a stereo, visit an auto electronics store, and ask for help choosing a stereo. For more detailed information, go here.
- Some retailers will offer to install your new device for free or at a low cost if you buy from them. Make sure you ask this.
- When removing screws or bolts, place them in a safe place so they don't get lost.
Warning
- If you're confused and lost, seek help from a professional, as you run the risk of damaging your car or hurting yourself.
- Follow the specific instructions provided by your stereo device. Some stages of installation may be for your car and stereo.
