Description
Tab panes Retain factory steering wheel controls
Upgrade the original radio in a compatible Scania truck while retaining supported steering wheel audio controls. Designed for selected vehicles fitted with a factory Scania Navigation System and a Quadlock connector behind the original radio.
Scania trucks For selected compatible models Quadlock Factory radio connection required Patch lead included Universal 39-HU-UNI lead supplied 12V operation Check the vehicle supply before installation
Upgrade the factory Scania navigation radio
This steering wheel control interface allows a compatible aftermarket stereo to be installed in selected Scania trucks while retaining supported factory steering wheel audio controls.
It is intended for vehicles fitted with a factory Scania Navigation System and a Quadlock connector behind the original radio. The interface also generates several useful CAN-bus signals required by compatible aftermarket stereos and navigation receivers.
Please note: universal patch lead included
This interface comes with a universal patch lead which can be used with compatible Alpine, Blaupunkt, Clarion, Pioneer, JVC, Kenwood, Sony, Zenec and resistive-programmable aftermarket head units.
| Radio being fitted | Part number | Short description |
|---|---|---|
| Universal | 39-HU-UNI | Self-pinning patch lead for 39-Series steering wheel control interfaces. Suitable for compatible Alpine, Kenwood, JVC, Blaupunkt with Mini ISO, Clarion, Zenec, Sony, Pioneer and resistive-programmable Chinese or unbranded stereos. |
Important 12V power requirement: This interface is designed to operate on a 12V electrical supply. Some Scania trucks use a 24V system, so check the vehicle voltage before installation and confirm whether a 24V-to-12V converter is required.
Key features
Steering control retention
Retains supported factory steering wheel audio controls when a compatible aftermarket stereo is installed.
Universal patch lead
Includes the 39-HU-UNI self-pinning universal patch lead for a wide range of compatible stereo brands.
Vehicle-specific connection
Designed for selected Scania trucks with a factory navigation radio and Quadlock connector.
CAN-bus integration
Reads compatible vehicle data to generate useful outputs for the aftermarket stereo installation.
Installation outputs
Provides ignition, speed pulse, reverse gear and illumination signals.
CAN-bus outputs
The interface provides the following CAN-bus-derived outputs for connection to a compatible aftermarket stereo or navigation unit:
Ignition Speed pulse Reverse gear Illumination
Check the original radio connection before ordering
This interface is intended for selected Scania trucks with a factory-fitted Scania Navigation System and a Quadlock connector behind the original radio. Remove the factory radio and compare its connection with the product images before ordering.
Product details
Vehicle and radio compatibility
Suitable for selected Scania trucks fitted with:
- A factory Scania Navigation System
- A Quadlock connector behind the original radio
- Factory steering wheel audio controls
- A compatible 12V electrical supply
Compatibility is determined by the factory radio system, connector and vehicle specification, not solely by the model or registration year. Included universal patch lead
The included 39-HU-UNI universal patch lead connects the steering wheel control interface to the remote-control input of a compatible aftermarket stereo.
It can be self-pinned for compatible Alpine, Blaupunkt, Clarion, Pioneer, JVC, Kenwood, Sony, Zenec and resistive-programmable head units.
Always configure the patch lead for the stereo brand before connecting power to the interface. 12V electrical system requirement
This steering wheel control interface is designed to work with a 12V electrical system. Some Scania trucks operate using a 24V supply, so the vehicle voltage must be checked before connecting the interface.
Please check before installation: If the vehicle provides a 24V supply at the radio, a suitable 24V-to-12V converter may be required to provide the interface and aftermarket stereo with the correct operating voltage. Retained steering wheel functions
When connected to a compatible aftermarket stereo, the interface retains supported factory steering wheel audio controls.
The exact functions retained can depend on the original controls and the features supported by the aftermarket stereo.
Phone button compatibility
Factory phone-button functionality is supported with selected compatible Alpine and Pioneer aftermarket stereos.
Phone-button operation may vary according to the stereo model and the functions supported by its steering wheel remote input.
Aftermarket stereo compatibility
The aftermarket stereo must have a compatible wired steering wheel remote-control input.
The supplied 39-HU-UNI patch lead supports compatible Alpine, Blaupunkt, Clarion, Pioneer, JVC, Kenwood, Sony, Zenec and resistive-programmable head units.
Check the stereo manufacturer, model number and steering wheel remote connection before installation. Installation information
- Disconnect the vehicle power safely before installation
- Confirm that the original radio uses a Quadlock connector
- Check whether the radio supply is 12V or 24V
- Install a suitable voltage converter if required
- Configure the supplied patch lead for the stereo brand
- Connect the patch lead before powering the interface
- Test all controls and outputs before rebuilding the dashboard
Professional installation is recommended. Additional fascia and antenna adapters may be required depending on the vehicle and aftermarket stereo. Important compatibility notes
- For selected Scania trucks only
- Requires a factory Scania Navigation System
- Requires a Quadlock connection behind the original radio
- Designed to operate from a 12V electrical supply
- A 24V-to-12V converter may be required in 24V vehicles
- The aftermarket stereo must support wired steering controls
- A 39-HU-UNI universal patch lead is included
- Phone-button support is limited to compatible Alpine and Pioneer stereos
Do not connect the interface directly to a 24V supply. Check the vehicle voltage and use a suitable 24V-to-12V converter where required.
Frequently asked questions
Will this interface fit every Scania truck?
No. It is designed for selected Scania trucks fitted with a factory Scania Navigation System and a Quadlock connector behind the original radio.
Is a patch lead included?
Yes. The interface includes a 39-HU-UNI self-pinning universal patch lead for compatible Alpine, Blaupunkt, Clarion, Pioneer, JVC, Kenwood, Sony, Zenec and resistive-programmable head units.
Does the interface work with a 24V supply?
The interface is designed for a 12V electrical supply. If the truck provides 24V at the radio, a suitable 24V-to-12V converter may be required.
Which vehicle signals does it provide?
The interface provides ignition, speed pulse, reverse gear, handbrake and illumination outputs.
Will the factory phone buttons continue to work?
Phone-button functionality is supported with selected compatible Alpine and Pioneer stereos. Operation can vary according to the head-unit model.
Will I need any additional fitting parts?
Additional parts may be required, including a fascia adapter, antenna adapter or 24V-to-12V converter. Requirements depend on the truck and aftermarket stereo being installed. The universal steering-control patch lead is included.
Need help confirming compatibility?
Contact our team with the Scania model, year, factory radio details, connector photographs and aftermarket stereo model. Please also confirm whether the radio supply is 12V or 24V.
Contact InCarTec
Brand: InCarTec
Car models: The years stated refer to the model’s years of manufacture, please check the item description for information about any changes there may be within these productions years.
SCANIA – G-Series (2007 >)
SCANIA – P-Series (2004 >)
SCANIA – R Series (2004 – 2016)
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