How to Install a Stereo in an Audi A5

1. Loosen the bolt on the negative battery cable with the wrench. Lift the cable from the battery and set it aside.
2. Slide the two Audi/VW stereo keys into the slots at either corner of the stereo. Push the tools into the openings until they lock into place.
3. Place your fingers into the loops at the ends of the tolls and pull the stereo from the dashboard stereo dock. Disconnect the stereo wiring from the back of the unit and unplug the antenna cable.
4. Slide the installation sleeve included with the aftermarket stereo deck into the vacant stereo dock. Pull the two stereo wiring connectors and antenna cable from the back of the dock to the front of the dashboard. Plug the stereo wiring connectors into the wiring harness adapter leads.
5. Connect the wiring harness adapter lead connectors to the corresponding outlets on the rear panel of the new radio. Insert the antenna cable lead into the antenna input on the back of the aftermarket stereo deck. Slide the unit into the sleeve (inside the stereo deck) until it locks into place within the dash.