The Mazda 3 GT is a sporty version of Mazda's popular compact sedan. The GT comes factory equipped with a CD player, but over time you may want to upgrade the stereo to a nicer aftermarket model. There's no reason to pay a car audio specialist to do it for you, as removing the factory stereo on the Mazda 3 GT is a straightforward process that can be done in minimal time. To install a new aftermarket stereo you must have a dash adaptor kit, as the factory stereo is much larger than most aftermarket stereos.
- Skill level:
- Moderately Easy
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Things you need
- Phillips and flathead screwdrivers
- Dash adaptor
Disconnect the negative battery cable from your Mazda 3's battery.
Use a flat head screwdriver to pry loose the trim panel surrounding the AC vents. Pull the panel out from the dash. The AC vents will come out with the panel.
Remove the screws holding the factory stereo in place. Slide the factory stereo out of the dashboard and disconnect the wiring harness and antenna from the back of the stereo.
Slide the DIN cage included with your new stereo into your Mazda 3 dash adaptor. Slide the new stereo into the DIN cage and lock it into place according to the installation instructions included with your stereo.
Connect the wires running from the dashboard to the back of your new stereo. All aftermarket stereos have slightly different installation methods, so refer to the installation instructions included with your stereo for the proper connection procedure.
Slide the dash adaptor and stereo assembly into the dashboard and use the previously removed screws to mount it into place. Replace the AC vent trim panel and reconnect the negative battery cable.
Tips and warnings
- Never attempt to replace the radio while the battery is still connected.
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