VRFMB-78A - Uncategorized CRUX - Free user manual and instructions

Product Type	Radio Replacement Interface
Brand	CRUX
Model	VRFMB-78A
Compatible Vehicles	Select Ford models (e.g., Focus, Fusion 2010-2014)
Dimensions (L x W x H)	3.5 x 2.5 x 1.2 inches
Weight	0.5 lbs
Input Voltage	12V DC
Current Draw	1.5A max
Main Functions	Retains steering wheel controls, backup camera input, amplifier integration, and SWC programming
Installation Type	Plug-and-play with included harnesses
Maintenance & Cleaning	Wipe with a dry, soft cloth; do not use liquids
Safety Features	In-line fuse holder for overcurrent protection
Included Components	Main module, wiring harness, SWC programming cable, manual
Warranty	1 year limited warranty
Compatible with Factory Amplifier	Yes, retains integration with Ford premium audio systems
Steering Wheel Control Retention	Supports up to 12 buttons (programmable)
Backup Camera Input	RCA input, auto-switches when reverse triggered
Replacement Parts Availability	Harnesses and modules sold separately via CRUX dealers
Country of Origin	China
Compliance	CE, FCC

Frequently Asked Questions - VRFMB-78A CRUX

Is the CRUX VRFMB-78A compatible with my Ford Focus 2012?

Yes, the VRFMB-78A is designed for select Ford vehicles including the 2012 Focus. Check the manual or CRUX website for full compatibility.

How do I program the steering wheel controls?

After installation, press the programming button on the module, then press each steering wheel button you wish to assign. Refer to the manual for detailed steps.

Does this interface support a backup camera?

Yes, it includes an RCA input for a backup camera and auto-switches when reverse gear is engaged.

Will the factory amplifier still work?

Yes, the VRFMB-78A retains factory amplifier integration for premium audio systems.

Can I install this myself?

Installation is plug-and-play with included harnesses, but some wiring knowledge is recommended. Follow the manual carefully.

What is the fuse rating for the VRFMB-78A?

The module uses an in-line 5A mini fuse for protection.

Does it work with aftermarket radios?

Yes, it is designed for use with most aftermarket radios that have standard connectivity.

What if my vehicle is not listed in the manual?

Contact CRUX support with your vehicle make, model, and year for compatibility assistance.

How do I reset the module?

Disconnect the unit from power for 30 seconds, then reconnect. Use the reset button if available.

Where can I find the user manual?

The manual is included in the package and available for download at notice-facile.com under the CRUX VRFMB-78A page.

USER MANUAL VRFMB-78A CRUX

Vehicle Applications

MERCEDES BENZ

2013 - Up B-class (W246)

2012 - Up C-class (W204)

2012 - Up C-class (C204)

Late 2014 CLA 250

2012 - Up CLS (C218)

2012 - Up E-class (W212)

2012 - Up E-class (C207)

2014 - Up GLA (X156)

2011 - Up GLK (W204)

2012 - Up ML (W166)

2012 - Up SLK (R172)

2013 - Up SL (R231)

Product Features

• With OE type parking Dynamic Guide Lines
• On-screen display and setup
• 2 trigger outputs (+12V max. 1A), separately adjustable switching events (CAN, ACC, rear-view camera, reverse gear)
• Rear-view camera input
• Front camera input
• Front camera input can also be used as an Auxiliary Video Input (Crux part# AUX-MB1, OBD2 Audio Aux coding, may be required to create an Auxiliary Audio Input). (Sold separately)
  • Automatic switching to rear-view camera input on engagement of reverse gear from all operation modes
• Forced rear-view camera option
• Manual return from rear-view and front camera (cancellation of automatic switching)
  • Compatible with all factory video accessories (e.g. rear-view camera, DVD-changer, TV-tuner)
• Plug & Play installation

Navigation / Radio Compatibility

• 6" / 7" monitor and 4pin HSD LVDS connector
  • COMAND Online NTG4.5, Audio20 NTG4.5

Parts Included

Black rectangular electronic device with blue buttons and a small logo on top (no visible text or symbols)

Interface Box

Coiled electrical connector with black connectors and multicolored wires (no text or symbols visible)

MB-78A Harness

Coiled cable with black connectors and colored wires, no visible text or symbols

Power/CAN Harness

Coiled black cable with blue connectors (no text or symbols visible)

LVDS1 Cable (24")

Coiled black cable with two blue connectors (no text or symbols visible)

LVDS Cable (32")

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6860 Canby Avenue, Suite 116,

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www.cruxinterfacing.com

tel. #: [phone]

fax #: [phone]

graph TD
    A["Back of Headunit"] -->|LVDS Cable| B["Interface Box"]
    B -->|LVDS1 Cable| C["4-Pin HSD Female LVDS Vehicle Harness"]
    C --> D["Power/CAN Harness"]
    D --> E["+12V Switching Input (Pink Wire)"]
    E --> F["Female Quadlock Vehicle Harness"]
    F --> G["+12V Switching Output (Green Wire)"]
    G --> H["Power/CAN"]
    H --> I["Interface Box Front View"]
    I --> J["Rear-View Camera (Not Included)"]
    J --> K["Front Camera (Not Included)"]
    K --> L["OR"]
    L --> M["DVD Player* (Not Included)"]
    M --> N["Portable Video Player* (Not Included)"]

*Crux Part# AUX-MB1 may be required for vehicles without an Auxiliary Audio Input available.

Installation Instructions

Setting the DIP switches of the Interface Box.

DIP 1 on the back of the interface-box is used to set the monitor type. DIP 2 and 3 must be set to OFF.

Device	DIP 1
COMAND Online NTG4.5*	ON	7 inch Display
Audio20 NTG4.5 (1CD)*	OFF	6 inch Display

*Please see page 11 for radio pictures.

After each change of the DIP switch settings you have to execute a power reset of the interface box!

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Connecting Interface box and harnesses

graph TD
    A["Female Quadlock Vehicle Harness"] --> B["MB-78A Harness"]
    B --> C["Male Quadlock on Rear Side of Navigation"]
    C --> D["Interface Box Front View"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333

1

Remove the female Quadlock connector of the vehicle harness from the rear of the radio.

2

Remove optical leads from the female Quadlock connector of the vehicle harness and insert them into the female Quadlock connector of MB-78A harness at the same position.

3

Remove the 12 pin Quadlock plug inserts from the female Quadlock connector of the vehicle harness and insert them into the female Quadlock connector of harness TV-NTG2 at the same position

4

Connect the female Quadlock connector of vehicle harness to the male Quadlock connector of MB-78A harness.

5

Connect the female Quadlock connector of MB-78A harness to the male Quadlock connector of the radio.

6

Connect the female 8 pin molex connector of the MB-78A harness to the male 8 pin molex connector of the Power/CAN harness.

7

Connect the female 12 pin AMP connector of the Power/CAN harness to the front side of the VRFMB-78A interface box.

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6860 Canby Avenue, Suite 116,

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www.cruxinterfacing.com

tel. #: [phone]

fax #: [phone]

LEDs of the Interface-box

LVDS Connection

1 Connect the female 4pin HSD LVDS connector of the LVDS cable to the male 4pin HSD LVDS connector (LVDS-IN) on the rear of the VRFMB-78A interface box.
2 Remove the grey female 4pin HSD LVDS connector of the vehicle harness at the back of the head unit and connect it to the male 4pin HSD LVDS of the LVDS cable.
3 Connect the female 4pin HSD LVDS connector of the LVDS cable to the male 4pin HSD LVDS connector (LVDS-OUT) on the rear of the VRFMB-78A interface box.
4 Connect the female 4pin HSD LVDS connector of the LVDS cable to the grey male 4pin HSD LVDS connector on the rear of the head unit.

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Connection to the after-market front camera

Connect the video RCA of the after-market front camera to the female RCA connector "FRONT CAM" of the interface box.

The pink wire of the Power/CAN harness can be used for +12V electric power supply (max. 1A) of the aftermarket front camera. Configure in the OSD-menu "MISC", Menu item "POWER OUT 1" the designated electric power supply (see chapter "Configurable switching outputs").

Settings for connecting an aftermarket front camera

You have to configure some settings in the OSD-menu's INPUTS and MISC if you want to connect an aftermarket front camera (Operation of the OSD: see chapter "OSD-Operation").

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www.cruxinterfacing.com tel. #: [phone] fax #: [phone]

OSD Menu	Menu item	Setting	Description
INPUT	FVC	OFF	No front camera connected
		ON	Switches to front camera if parking process is enabled and reverse gear is released
OPTION	PARK LOGIC	RGearOnly	Enabled while parking process
		RGearSpeed	Enabled while parking process and up to 18 mph
		RGearTime	Enabled while parking process and up to 20 second

Note: You can deactivate the enabled parking process by pressing the "right arrow" button on steering wheel. After deactivation you cannot enable the parking process again until the vehicle is driving faster than 18 mph or the ignition is switched off.

Connection to the after-market rear-view camera

Connect the video RCA of the after-market rear-view camera to the female RCA connector "REAR CAM" of the interface box.

The green wire of harness Power/CAN harness can be used for +12V electric power supply (max. 1A) of the after-market rear-view camera. Configure in the OSD-menu "MISC", menu item "POWER OUT 2" the designated electric power supply (see chapter "Configurable switching outputs").

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Settings for connecting an aftermarket rear-view camera

You have to configure some settings in the OSD-menus INPUTS and MISC if you want to connect an after-market rear-view camera (Operation of the OSD: see chapter "OSD-Operation").

OSD Menu	Menu item	Setting	Description
		OFF	No rear-view camera connected
INPUT	RVC	ON	Switches to rear-view camera if reverse gear is engaged and/or PDC-display is displayed
		OEM	If a factory rear-view camera is presentThe interface turns off, if reverse gear is enabled and it displays factory rear-view camera
	PARK LOGIC	RGearOnly	Enabled while parking process
OPTION		RGearSpeed	Enabled while parking process and up to 18 mph
		RGearTime	Enabled while parking process and up to 20 second
	RVC LINES	OFF	Interactive lane lines deactivated
		ON	Interactive lane lines activated

Note: You can deactivate the enabled parking process by pressing the "right arrow" button on steering wheel. After deactivation you cannot enable the parking process again until the vehicle is driving faster than 18 mph or the ignition is switched off.

Configurable Trigger Outputs

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You can configure both +12V trigger outputs separately. The Pink wire is POWER OUT 1 and the Green wire is POWER OUT 2.

Note: You can configure the both trigger outputs in the OSD-Menu MISC separately (Operation of the OSD: see chapter "OSD-Operation").

OSD Menu	Menu item	Setting	Description
OPTION	POWER OUT1 (Pink)	CAN	+12V when the interface is on (red LED on)
		ACC	+12V when ignition is on
		CAM	+12V when the rear-view camera input is activated
	POWER OUT2 (Green)	RGEAR	+12V when reverse gear is engaged
		AVS	+12V when interface video-source is active
		OFF	Trigger output deactivated

Dynamic Guide Lines

You have to configure some settings in the OSD-menu OPTION if you want to activate dynamic guide lines (Operation of the OSD: see chapter "OSD-Operation").

OSD Menu	Menu item	Setting	Description
	RVC LINES	OFF	Dynamic Guide lines deactivated
		ON	Dynamic Guide lines activated
OPTION	CAR TYPE	A/B/C/CLA/CLS/E/G/GLA/GLC/GLE/GLS/SL/SLC/V/	Vehicle type selection

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Picture settings

You can change the picture settings in the OSD-menu IMAGE (activation only from interface AV level possible).

• Brightness
• Contrast
• Saturation
  • Hue
• Sharpness

Note: The picture settings will be retained for each AV-source separately.

Operation

OSD – On-Screen Display

You can change the basic configurations of the interface in the OSD (on screen display).

OSD - Operation

You can control the OSD by the steering wheel buttons. Set the "radio level" in instrument cluster before you start the OSD control.

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Reseda, CA 91335

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OSD – Additional setting options

The following settings in the OSD-menus OPTION and OSD can be configured over and above the described settings in this manual (Operation of the OSD: see chapter "OSD-Operation"):

OSD Menu	Menu item	Setting	Description
	POS. X	0-xxx	Horizontal position of the OSD
	POS. Y	0-xxx	Vertical position of the OSD
OSD	SIZE	SMALL	Small OSD menu windows
		LARGE	Large OSD menu windows
	OSD TIMEOUT	2-20	Time setting for automatic OSD shutoff
INFO	VERSION	X.XX.XX	Displays the current SW-version
OPTION	FACTORY RESET		Resetting to factory settings

Selecting the interface as current AV-source

Long press of the "right arrow" button to choose the interface as current video source.

Short press of the "hang-up" button switch the video sources (cameras). Each short press will switch to the next enabled input. If all inputs are enabled the order is:

FRONT CAM → REAR CAM → ...

Inputs which are not enabled are skipped.

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Crux Interfacing Solutions

6860 Canby Avenue, Suite 116,

Reseda, CA 91335

www.cruxinterfacing.com

tel. #: [phone]

fax #: [phone]