How to Install an Alpine Stereoby Jule Pamplin; Updated October 06, 2017
Items you will need
Vehicle shop manual
Installation sleeve (included with Alpine stereo unit)
Wiring harness adapter
GM antenna cable adapter (for GM vehicles only)
Alpine makes a variety of car audio components for aftermarket installation. Once you have chosen the Alpine deck that fits your car and your budget, remove and disconnect your vehicle's factory-installed stereo unit. The Alpine stereo comes equipped with an installation sleeve for mounting within the stereo dock. You can use the sleeve or an aftermarket faceplate adapter for the best fit.
Pop the hood of the vehicle and disconnect the negative battery cable from the battery terminal. Loosen the bolt that holds the cable's clamp over the negative terminal lead. Lift the clamp from the battery and set the cable aside until the stereo is installed.
Remove the factory stereo from the stereo dock inside the vehicle. Consult your vehicle shop manual for steps on removing the dashboard paneling and other obstructions to the stereo dock. Slide the unit from the dashboard and disconnect the stereo wiring connectors and antenna cable lead from the rear panel of the unit.
Slide the Alpine stereo's installation sleeve into the empty stereo dock. The metal pressure plates will hold the sleeve tightly within the stereo dock. If the plates do not provide the necessary tension, fold them outward with a flat screwdriver to secure the sleeve within the dock.
Pull the vehicle's stereo wiring and antenna cable from the back of the dock through the installation sleeve to the front of the dashboard. Attach the stereo wiring connectors to the wiring harness adapter leads. The connectors and wiring will fit together only one way; refer to the diagram in the accompanying manual or the color code on the adapter itself for proper connection. For GM vehicles, connect the antenna cable lead to the GM antenna adapter.
Plug the wiring harness connectors into the outlets on the right side of the Alpine deck's rear panel. Plug the antenna cable lead (or adapter lead for GM vehicles) into the FM/AM antenna input on the opposite corner of the stereo's rear panel.
Slide the Alpine head unit into the stereo installation sleeve until it locks into place. Leave the detachable face on the unit when inserting it into the dash to avoid pushing it too far into the dashboard dock. Replace any paneling that was removed to access the stereo dock, referring to your shop manual for instructions.
Place the battery cable clamp back over the negative battery terminal. Tighten the bolt on the clamp with the wrench to secure the cable to the corresponding battery lead. Close the vehicle's hood.