ACV 42SFO008+ML Steering Wheel Control Adapter Instruction Manual

1. Introduction

The ACV 42SFO008+ML Steering Wheel Control Adapter allows you to retain the functionality of your vehicle's factory steering wheel audio controls when installing an aftermarket car stereo. This adapter is specifically designed for Ford C-Max models manufactured from December 2010 onwards and Ford Focus models manufactured from 2011 onwards. This manual provides essential information for the correct installation and operation of your adapter.

2. Safety Information

• Always disconnect the vehicle's battery before beginning any electrical installation to prevent short circuits and damage.
• If you are unsure about any step of the installation process, consult a qualified professional installer.
• Ensure all electrical connections are secure and properly insulated to prevent hazards.
• Do not attempt to modify or disassemble the adapter module.

3. Package Contents

Please verify that all items listed below are present in your package:

• ACV 42SFO008+ML Main Interface Module
• Vehicle-Specific Wiring Harness
• Infrared Emitter/Receiver Module (small black box)
• Universal Head Unit Connection Cable (with KEY1, KEY2, GND, and 3.5mm jack)

Figure 1: ACV 42SFO008+ML Main Interface Module with vehicle-specific wiring harness, including various connectors and the infrared emitter module.

Figure 2: Universal Head Unit Connection Cable, featuring labeled wires for KEY1, KEY2, GND, and a 3.5mm jack for connecting to an aftermarket stereo's steering wheel control input.

4. Setup and Installation

Follow these steps for proper installation. It is recommended to consult your vehicle's service manual and your aftermarket head unit's instruction manual for specific wiring diagrams.

1. Preparation: Disconnect the negative terminal of your vehicle's battery. Carefully remove the factory car stereo from the dashboard.
2. Connect Vehicle Harness: Connect the vehicle-specific wiring harness from the ACV adapter to the corresponding connectors in your vehicle's dashboard. These typically connect to the factory radio harness.
3. Connect Head Unit Harness: Connect the ACV adapter's main harness to your aftermarket car stereo's ISO connectors. Ensure all power, ground, and speaker wires are correctly matched.
4. Connect Steering Wheel Control Wires: Identify the steering wheel control input wires on your aftermarket head unit. These are often labeled as SWC, KEY1, KEY2, or Remote Input. Connect the

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