Audio 42XFA026-0 Steering Wheel Control Interface Installation Guide

42XFA026-0 Steering Wheel Control Interface

Product Specifications

• Product Name: Steering Wheel Control Interface for Fiat
  Vehicles

• Model Number: 42XFA026-0

• Vehicle Compatibility: Fiat Ducato 8-Series (ZAF 250) 2021 –
  2024

• Connector Type: Mini ISO Connector (For vehicles with open dash
  only)

Product Usage Instructions

Prior to Installation

Installation of the 42XFA026-0 requires a certain level of
technical knowledge. Before starting the installation process,
please ensure to read the manual carefully. Select a dry location
free from heat sources for installation. Use the correct tools to
prevent any damage to the vehicle or the product. Note that
improper installation may void warranty and we cannot be held
liable for any issues arising from it.

Before beginning the installation process, it is crucial to
disconnect the negative battery terminal and make sure the key is
removed from the ignition.

ISO Connector Wiring Key

• Purple: Right Rear Speaker +
• Purple/Black: Right Rear Speaker –
• Green: Left Rear Speaker +
• Green/Black: Left Rear Speaker –
• Grey: Right Front Speaker +
• Grey/Black: Right Front Speaker –
• White: Left Front Speaker +
• White/Black: Left Front Speaker –
• Yellow: Permanent 12V
• Black: Ground
• Red: Ignition 12V
• Orange: Illumination
• Orange/Green: Reverse Speed Pulse
• Purple/White: Reverse Gear – 250mA Standby
  Current

Frequently Asked Questions (FAQ)

Q: Can this interface be used with other vehicle brands apart

from Fiat?

A: No, this interface is specifically designed for Fiat vehicles
and may not be compatible with other vehicle brands.

Q: What should I do if I face issues during installation?

A: If you encounter any problems during installation, please
refer back to the manual for troubleshooting steps. If the issue
persists, contact our customer support for assistance.

Q: Is it necessary to disconnect the battery before

installation?

A: Yes, it is crucial to disconnect the negative battery
terminal before starting the installation process to avoid any
electrical mishaps.

STEERING WHEEL CONTROL INTERFACE FOR FIAT VEHICLES

42XFA026-0

INSTALLATION GUIDE

The 42XFA026-0 allows for the retention of the steering wheel controls as well as other vital features when installing an aftermarket unit into the vehicle. This interface features selectable dipswitches for dedicated applications, simply refer to the provided table for the correct configuration ensuring seamless integration.

VEHICLE APPLICATION
FIAT
Fiat Ducato 8-Series (ZAF 250) 2021 – 2024
MINI ISO CONNECTOR. FOR VEHICLES WITH OPEN DASH ONLY

KEY FEATURES
· RETAIN STEERING WHEEL CONTROL FUNCTIONALITY · REPLACE FACTORY RADIO · OUTPUTS FOR SPEED PULSE & REVERSE · SOFTWARE UPDATEABLE · REMAPPABLE BUTTONS

PRIOR TO INSTALLATION
Installation requires a certain level of technical knowledge. Prior to installation, it is important to read the manual. Select a location for installation that is dry and free from heat sources. It is essential to use the correct tools during installation to prevent any damage to the vehicle or the product itself. Please note that we cannot be held liable for any issues arising
from improper installation.
Before proceeding with installation, disconnect the negative battery terminal and ensure the key is removed from the ignition.

ISO CONNECTOR WIRING KEY
FLYING WIRE WIRING KEY OUTPUTS & RATINGS

WIRING KEY

Purple

Right Rear Speaker +

Purple/Black Right Rear Speaker –

Green

Left Rear Speaker +

Green/Black Left Rear Speaker –

Grey

Right Front Speaker +

Grey/Black Right Front Speaker –

White

Left Front Speaker +

White/Black Left Front Speaker –

Yellow Black Red Orange

Permanent 12V Ground Ignition 12V Illumination

Orange Green

Reverse Speed Pulse

Purple/White Reverse Gear – 250mA

Standby Current <3mA

Operating Voltage 6V to 16V

Operating Temperature -20C to 85C *rated at 25 degrees Centigrade

DIPSWITCH CONFIGURATION

MANUFACTURER
RESERVED ALPINE ANALOG SINGLE EXTEND ANALOG SINGLE WIRE CLARION CUSTOM GRUNDIG JVC KENWOOD 1 KENWOOD 2 KEY 1 / KEY 2 KEY 1 / KEY 2 EXTEND PHILIPS PIONEER 1 PIONEER 2 SONY ZENEC

SYSTEM
NA IR DATA Analog Analog IR DATA IR DATA IR DATA IR DATA IR DATA IR DATA Analog Analog IR DATA Analog Analog Analog IR DATA

DIPSWITCH CONFIGURATION

1

2

3

4

OFF

OFF

OFF

OFF

OFF

ON

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

OFF

ON

OFF

OFF

ON

ON

OFF

ON

OFF

OFF

ON

OFF

ON

OFF

OFF

ON

OFF

ON

OFF

OFF

OFF

ON

ON

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

ON

ON

OFF

ON

OFF

ON

OFF

OFF

OFF

ON

OFF

OFF

ON

ON

ON

OFF

ON

ON

ON

ON

OFF

ON

DIPSWITCH 5 & 6 Dipswitch 5 & 6 are reserved for vehicle specific configuration.

CONNECTION
SOFTWARE UPDATE MODE MALE 3.5MM JACK BROWN SWC IR BROWN SWC IR MALE 3.5MM JACK
HEAD UNIT DEPENDANT BROWN SWC IR BROWN SWC IR BROWN SWC IR BROWN SWC IR
KEY1 / KEY 2 WIRES KEY1 / KEY 2 WIRES
BROWN SWC IR MALE 3.5MM JACK MALE 3.5MM JACK MALE 3.5MM JACK
BROWN SWC IR

KEY1 and KEY2

KEY1 and KEY2 are specifically tailored for analog learning mode-style radios. Our SWC module is designed with a resistor chain that precisely matches the required resistance for seamless compatibility with this type of head unit.

KEY1 and KEY2 EXTEND

This mode extends every button press to 2 seconds during the learning process. However, with rolly wheel-designed steering wheel buttons, holding for 2 seconds isn’t feasible. Our KEY1 and KEY2 extend feature addresses this by automatically prolonging each press, simplifying head unit programming even in such scenarios. Extend mode is not intended for normal use, it is only used in the teaching process.

ANALOG SINGLE WIRE and ANALOG SINGLE
WIRE EXTEND

This function operates similarly to KEY1 and KEY2 but transmits all unique values through the IR SWC single wire. This is crucial for compatibility with learning-style head units featuring only one learning input wire. To ensure compatibility, we’ve incorporated this feature into our steering wheel control interface, ensuring seamless operation across various head unit setups. The Analog Extend mode functions identically to its counterpart within the KEY1 and KEY2 system but transmits through a single wire.

SWC INTERFACE

18 PIN HARNESS CONNECTOR

DIPSWITCHES

16-PIN HEAD UNIT CONNECTION LEAD

USB-C

CONNECTION GUIDE

BEFORE INSTALLATION
Prior to installing the interface, it is essential to remove and disconnect the factory stereo. For guidance on this process, please refer to the vehicle owner’s manual/handbook or seek assistance from a professional.

SETTING THE DIPSWITCHES This interface includes a set of dipswitches. Consult the dipswitch selection guide to select the appropriate configuration. To activate a dipswitch, press it downward into the ON’ position. Refer to the diagram for an example of theKENWOOD1′ dipswitch configuration.
INSTALLATION

O

K

N1

2

3

45

E 6

1. Take the interface, then connect the 16-PIN head unit connection lead and the 18-PIN steering wheel harness connectors to their respective ports.

2. Connect the head unit connection lead to the steering wheel remote input on the rear side of the aftermarket stereo. Connection methods vary based on the stereo brand, utilising either a 3.5mm jack connector SWC IR wire or wired inputs KEY1 and KEY2. Note: For specific connection guidance, refer to your aftermarket stereo’s installation manual if not clearly labelled on the stereo harness.
3. Connect the 6-pin male connector to the grey vehicle-specific connector (pictured). This connector will either be located at the bottom of the dash, loose, or connected via the cup holder of the vehicle. Do not connect to the orange variant. Note: If the vehicle has a Qi charger, disconnect the charger connector and use the male and female connectors between them to act as a T-harness.
4. Route the pin end of the speed/reverse wires from the main dash aperture through and down towards the fuse panel. Leave the bare-ended wires in the dashboard aperture for use on the new head unit.

5. Disconnect both the green and black connectors located at the fuse box.
6. Take the green connector and remove the blue/white wire from pin location 17 from the back of the housing. Then, take the orange reverse wire from the supplied harness and plug it into the original place. Note: When removing the blue/white wire from the original location, try to ensure that the retaining clip does not get damaged. If it bends, gently bend it back into shape for reuse.
7. Place the original blue/white wire from the vehicle into one of the 2-pin housings. Once done, insert this 2-pin assembly into the blue housing on the supplied harness. Note: The location of the blue/white wire must match the location seen from behind the blue connector.
8. Insert the green speed wire into pin location 22 on the back of the black connector housing. Note: Before making any connections, ensure that the signals are present, as pin positions may vary depending on the vehicle.
9. Connect the power/speaker ISO connector to the power/speaker ISO connector at the rear of the aftermarket stereo. Note: For aftermarket stereos without an ISO connector, refer to the “Wiring Key” on Pg. 2 for information on which wires to connect. Some interfaces may also have additional flying’ wires that can be connected to the vehicle to support various features, such as parking brake trigger, reverse gear, and speed pulse. Details of these can be found underAdditional Connections’.
10. Connect the female Mini ISO connector on the harness to the male equivalent connectors from the vehicle. Test the stereo and steering wheel control functionality for correct operation before reassembling the vehicle dashboard. If the steering wheel control functions are unresponsive, uninstall the interface and wiring, then reinstall carefully according to the above steps.

11. After connecting all wires (along with any additional accessories), it’s crucial to thoroughly test the stereo and steering wheel controls before reassembling the dashboard. If steering wheel controls are unresponsive, inspect connections and check dipswitch settings. Repeat the connection process if necessary, following the outlined steps.

STEERING WHEEL CONTROL CONFIGURATION

C

G

A

E

I

F

H

D

B

A Volume Up B Volume Down C Track Up

D Track Down E Source F Mute

G Pick Up H Hang Up I Voice Control

The provided diagram, while meticulously researched, serves as an example only. Actual steering wheel control configurations may vary dependant on each vehicle.

BUTTON REMAPPING
The steering wheel buttons listed offer the flexibility of being re-configured or assigned dual functions. The availability of these buttons depends on the specific vehicle to which the interface is being installed and if the aftermarket radio supports them. In addition to button remapping, we offer the option to assign dual functions to each button on the steering wheel. This means that every button can be programmed to execute both a short press command and a long press command. You can also add your own bespoke configuration. Button configuration can be done by PC, MAC and smart phone via the USB port.
Button Remapping instructions can be found in a separate guide on our website.

CONNECTION DIAGRAM

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