V1 Instrumentation -- Installation This document explains the installation procedure for the V1 series gauges. Please read this document completely before starting the installation process to ensure you have the tools and skills required to perform the installation. If you are unsure about any part of the process or have doubts about your ability to perform the installation procedure, please call us or consult someone knowledgeable about this process and your specific vehicle. After completing this installation, refer to the V1 Operation document to understand the configuration and settings of the instrument. MOUNTING The V1-M instruments have an industry-standard size (body diameter) of 2-1/16" (52mm) so installation is easy with most aftermarket housings. If you are using a gauge-specific housing, such as a gauge pod or custom instrument panel, use the hardware and follow the instructions provided with that. If you are using a flat dash panel, use the hardware supplied with the gauge. Drill a 2-1/16" hole using a hole-saw on a drill, insert the gauge thru the front, then secure with the U-clamp provided. DO NOT overtighten the nuts on the back of the gauge. Instead, to prevent the screws backing out due to vibration, simply use a drop of removeable threadlocker or regular nail-polish on the joint between the nut and screw threads. WIRING The wires on each V1 instrument will be different based on the purpose of the instrument, but the wire colors are standardized. Connect the ones you have as listed below. Some are optional, and are stated as such, but if not, they must be connected. The wires are not supplied with a connector, as they should be connected with crimp-on butt connectors. Before connecting any wires, you should either disconnect the battery power, or carefully connect the wires in the order shown. If not, you may damage the instrument. You could use an existing fuse in the fuse panel, or use and external fuse. If using an existing fuse in the vehicles fuse panel, replace that fuse for one with a current rating of 5 Amps - 10Amps higher than already provided. If using an external fuse, use a fuse rated at either 5 Amps or 10 Amps. BLACK -- connect this to a solid ground, either directly to the battery of to a chassis mounted piece of metal under the dashboard. If the metal is painted, you will need to scrape or sand the paint to expose the metal before connecting. A ring terminal and a screw should work well in most cases. This wire will be present on all instruments. ORANGE -- connect this wire to permanent +12V power. The easiest source will be available near the vehicle fuse box, but can also be tapped directly off the battery. If there is an orange wire, it is mandatory that you connect it. RED -- connect this to a source of switched +12V power. This will usually be found at or near the ignition switch, and will usually have a relay wired through the ignition switch. An alternate source of this is a switched power line from a nearby light or accessory (radio, etc). If you are unsure that the wire can supply the power required for the gauge, then use an external relay. This wire will be present on all instruments, and must be connected. GREEN -- connect this wire to the positive line (+12V) from the headlight switch. This line is optional. If this feature is unused, connect it to ground. WHITE -- connect this to the sender terminal. Most senders have only one wire, with the return/ground line coming from the chassis (ground) connection. For ammeters, connect this to the high (battery) side of the shunt. If this wire is present, it must be connected. YELLOW -- connect this to the vehicle side of the ammeter shunt. If present, it must be connected.

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