Connecting the Dome Lights

The dome lights in the video monitor require three connections to the vehicle's wiring. There are two common types of dome light circuits used, positive or negative switched. Positive systems supply volt- age to the interior lights to turn them on, negative switched systems apply ground to illuminate the bulbs. To determine which system you have you must locate the wires at the dome light. On a positive switched system, with all the doors closed and the lights out, both wires at the dome light will rest at ground. When the light is activated, one of these wires will switch to +12 vdc. This is the vehicle's switching wire. On a negative switched system, with all the doors closed and the lights out, both wires at the dome light will rest at + 12vdc. When the light is activated, one of these wires will switch to ground. This is the switching wire.

For positive systems, connect the purple / brown (Lamp auto) wire to the vehicle's switched wire. Then connect the red / black (lamp on) wire to a fused constant 12 volt source and the black / red (lamp common) wire to a good ground. Positive systems are commonly found on Ford vehicles.

For negative systems, connect the purple / brown (Lamp auto) wire to the vehicle's switched wire. Then connect the red / black (lamp on) wire to a good ground and the black / red (lamp common) wire to fused constant 12 volt source. Negative systems are commonly found on General Motors and import vehicles.

Note:

Some vehicles which incorporate transistorized control of the dome light circuit, such as the 1999 Dodge Caravan, may require that the purple / brown (Lamp auto) wire be connected to the door pin switch wire, as the additional current draw of the Monitor's lights may not be supported by the output of the vehicles body control computer.

Positive Switched Dome lighting

	To 12 pin	Red / black - Lamp on
	connector	Black / red - Lamp common
	connector	Purple / brown - Lamp Auto
	on Monitor	Purple / brown - Lamp Auto
	on Monitor
	Factory Dome light circuit
	To
	constant
	+12vdc

Factory Door ajar switch or Body Control computer

constant

+12vdc

-7-

VOH703 specifications

The Audiovox VOH703 is a versatile and high-performance vehicle overhead monitor designed to enhance the in-car entertainment experience. This cutting-edge device features a 7-inch display with a resolution of 800x480 pixels, ensuring that both vivid visuals and sharp image quality captivate viewers. The screen is LCD, providing clear images even in various lighting conditions, making it ideal for long road trips or daily commutes.

One of the standout characteristics of the VOH703 is its dual-functionality, supporting both DVD playback and video input from external devices. This makes it a flexible choice for families who want to enjoy movies, music videos, or even video games while on the go. The built-in DVD player is compatible with various media formats, allowing users to play DVD, CD, and even MP3 files, making this unit a multimedia powerhouse.

In terms of connectivity, the VOH703 incorporates dual AV inputs and a USB port, enabling users to connect various devices, such as smartphones, tablets, and gaming consoles. This allows passengers to enjoy their favorite content directly from their devices, enhancing the overall entertainment experience. Additionally, the overhead monitor boasts a wireless FM transmitter, which allows audio playback through the vehicle’s existing sound system, eliminating the need for extra wiring.

Another notable feature of the Audiovox VOH703 is its LCD screen's capability to tilt and swivel, providing optimal viewing angles for all passengers in the back seat. This functionality is particularly beneficial in larger vehicles where seat positioning may hinder visibility. The unit also comes with built-in stereo speakers, allowing viewers to enjoy audio directly from the monitor when headphones aren't available.

The Audiovox VOH703 is designed with user convenience in mind. It includes an IR transmitter, allowing for wireless headphone use, providing a personal audio experience without disturbing other passengers. Its sleek design ensures that it can blend seamlessly with any vehicle interior, enhancing aesthetic appeal rather than detracting from it.

Overall, the Audiovox VOH703 overhead monitor is a comprehensive entertainment solution for modern vehicles. With its range of features, user-friendly connectivity options, and quality performance, it represents an excellent choice for families and tech enthusiasts alike.