Quad Monitors: Installation

Updated June 16, 2025 19:36

The 7” and 10.1” Quad Monitors mount in a vehicle's cab and connect up to four cameras to display simultaneously. While this article includes mounting and wiring recommendations for the system, vehicle differences require installation variations. The utmost care should be taken during any installation to avoid damaging the vehicle or system.

Mounting

To select a monitor mounting location, consider which areas in the vehicle’s cabin will allow the device to be fully in the driver’s view (and within reach, if possible) without the device or its harness obstructing the vehicle’s operation or systems.

Next, consider which mount type best fits the location, vehicle, and driver needs. There are three (3) mounting brackets to consider:

Select a Mounting Bracket

Included Mounts

The U-Bracket Mount works best on a surface parallel to the road (like a dashboard or ceiling). It's a sturdy mount that only allows up/down screen adjustments, but leaves the monitor's back without obstruction.
The Fan Mount can rotate from front to back, tilt from left to right, and be mounted to the vehicle using hardware or adhesive.

Optional Mounts

The Pedestal Mount is a flexible 6 " pedestal with a smaller mounting surface. It can only be mounted to the vehicle with hardware.

Mount the Monitor

Temporarily attach the monitor to the selected mount.
- - U-Bracket:
    - 1. Attach the monitor to the bracket with the four (4) thumb screws to the monitor’s sides.
      2. Tighten the screws when the monitor is in the desired position.
      3. The bracket is reversible if more adjustment is needed.
  - Fan & Pedestal Mounts:
    - 1. Slide the bracket’s t-nut into the slot at the monitor’s rear.
      2. Tighten the large round plastic nut to hold the bracket to the monitor.
Hold the monitor to the selected mounting location.
- - Verify that the device will not obstruct driver operation.
Mark the mounting location.
Verify the clearance in the selected location for the monitor harness.
- - Verify the clearance behind the dash, especially if the monitor harness is being routed in.
Remove the monitor from the bracket.
Determine which mounting hardware would work best for the vehicle’s surface.
- - Self-drilling hardware is best for thick plastic and metal surfaces.
  - Nuts, bolts, and washers should be used on less solid mounting surfaces.
  - Adhesive can be used on a windshield surface or when drilling is not an option.
Install the mount with the selected hardware.
Adhesive mounting is discouraged for the 10.1” Quad Monitor.
- - If using an adhesive:
    1. 1. Clean and dry the mounting surface.
      2. Spray 70% Isopropyl Alcohol or swab the area with an alcohol prep pad.
      3. Dry the surface to remove any residue.
      4. Remove the adhesive backing from the mount and align it with the marked location.
      5. Firmly press in place for 30 seconds.
      6. For best results, allow the adhesive to cure for at least one (1) hour before attaching the monitor.
Reinstall the monitor on the mount.
- - Check the view of the monitor from the driver’s seat.
  - Tighten the thumb screws to secure the monitor.

Connections

Power Connections

The device's harness must be connected to the vehicle’s ignition and ground to power the monitor. Poor connections or improper voltage/current will likely result in a non-functional or improperly operational device.

When selecting ignition and ground circuits, verify that no existing vehicle system requires that circuit; connecting a monitor harness to a previously occupied circuit may generate interference and affect image quality. If the monitor is installed alongside other Pro-Vision equipment, all ground leads should be connected to the same ground to eliminate system ground loops that may cause interference.

Locate the vehicle’s chassis (or battery) ground.
- - This should be a clean grounding stud or screw or a battery negative terminal.
Locate the vehicle’s accessory or ignition wire.
- - This wire should read +10 to +32 Vdc.
  - Use a digital multimeter to verify that the selected wire has the expected voltage.
Connect the included red 4A fuse holder as close to the power source as possible.
- - If the included fuse holder is in line on the monitor’s harness and the monitor’s connection must be extended, cut the fuse holder off the harness, leaving enough space to reconnect it at both ends.
Connect the monitor's red power wire to the 4A fuse holder.
- - Use 16 AWG red extension wire as needed.
Connect the monitor's black ground wire to the vehicle’s ground.
- - Use 16 AWG black extension wire as needed.
Attach the harness to the monitor.
- - Verify the monitor is mounted securely.

Camera Connections & Trigger Wires

The monitor's harness includes four (4) camera connectors and five (5) signal wires. Each is color-coded, with the wires matching the connectors for the cameras they trigger. Following this standard facilitates wire and cable identification and troubleshooting. The monitor’s trigger wires allow the device to display the camera relevant to the driver’s actions instantly. For example, setting the vehicle in reverse triggers the rear camera.

Connect the Cameras

Connect each camera or its A/V extension cable to the respective camera input on the monitor harness:

Connect the front or interior camera to the green CAM 1.
Connect the rear camera to the harness brown CAM 2.
Connect the passenger’s side camera to the harness blue CAM 3.
Connect the driver’s side camera to the harness white CAM 4.

Connect the Trigger Wires

Locate the circuits by testing their signal with a digital multimeter. This testing should be done while the motor runs, as some circuits will behave differently between accessory and full motor power. Verify there is only voltage in the circuit with the desired signal, not the brake lights. Use 16 AWG extension wire of the appropriate color as needed.

Locate and connect the signal wire most appropriate for the green CAM 1 trigger.
- - Green CAM 1 typically captures the front or interior of the vehicle, and this signal must be constant.
Locate and connect the vehicle’s reverse signal wire to the monitor’s brown CAM 2 trigger wire.
- - This must be a constant signal.
Locate and connect the vehicle’s turn signal wires.
- - Each wire should provide voltage only when the vehicle’s respective turn signal is active.
  - This may be an alternating or constant signal.
  - Connect the passenger (right) signal wire to the monitor’s blue CAM 3 trigger wire.
  - Connect the driver (left) turn signal circuit to the monitor’s white CAM 4 trigger wire.
Locate and connect the signal wire most appropriate for the yellow CAM 4 trigger.
- - This trigger typically displays CAM 3 and CAM 4 (passenger and driver’s) in a split-screen display. One standard option is the hazards signal circuit.

Please note: if these signal circuits (reverse, right, and left turn signals) are not available on the vehicle

Connect a solid signal to the green (front) and brown (rear) trigger wires
Connect an alternating vehicle signal to the blue (passenger) and white (driver) trigger wires.