BMW CarPlay Retrofit Installation GuideUpdated 4 days ago

Tools Required

• Retrofit kit (compatible with BMW F/G/E chassis)

• Trim removal tools

• Pick tool

• T20 Torx screwdriver

• Ratchet wrench

1️. Preparation

• Ensure the ignition is turned off.

• Remove the keys from the vehicle.

• Open the trunk.

• Disconnect the negative terminal of the battery using a wrench.

2️. Remove Trim Panels

• Use trim removal tools to gently pry off panels around:

  • Stereo unit

  • Infotainment screen

• Disconnect the hazard and lock/unlock connectors behind the AC vents trim.

• Be gentle to avoid:

  • Breaking clips

  • Damaging trim surfaces

• Set all removed trim pieces aside safely.

3️. Remove Stereo Unit

• Use a T20 Torx screwdriver to remove screws securing the stereo unit.

• Gently pull the stereo unit forward.

• Disconnect the main wiring harness ("black squared" plug).

• Be cautious not to:

  • Pull too hard

  • Damage any wires

• Place the stereo unit in a safe location.

4️. Install Retrofit Kit

• Connect the retrofit adapter harness to the stereo using the black squared connector.

• Plug the OEM connector into the new adapter harness.

• Important:

  • Transfer the optical cable into the new black squared connector

  • This step is essential for audio functionality (especially for NBT and NBT EVO systems).

• Ensure all harnesses are:

  • Securely connected

  • Fully seated

• Mount additional components (if included in the kit) behind the screen.

• Optional:

  • Connect the included USB harness for:

    • Dash cam

    • Backup camera

    • Phone charging

5️. Connect to Infotainment System

• Plug retrofit harnesses into the appropriate ports on the back of the infotainment screen:

  • Typically small white connectors

• Connect all auxiliary wires:

  • GPS antenna

  • Microphone (MIC)

  • WiFi antenna

• Double-check that all connectors are firmly seated to avoid issues.

6️. Reinstall Stereo Unit and Trim

• Tuck excess wiring neatly behind the stereo unit.

• Use the T20 Torx screwdriver to secure the stereo back into place.

• Reinstall all trim panels around the screen and controls by snapping them back in.

7️. Reconnect Battery

• Reconnect the negative battery terminal.

• Tighten the terminal securely using a wrench.

8️. Testing and Final Checks

• Start the vehicle to power on the infotainment system.

• Connect your smartphone via:

  • Bluetooth

  • USB cable

• Test functionality of:

  • Apple CarPlay

  • Android Auto

  • Audio system

  • GPS

  • Any auxiliary components (e.g., backup camera, USB charging)

✅ Installation Complete!
You're now ready to enjoy your upgraded BMW infotainment experience.