GVN 53 installation instructions WARNING Failure to avoid the following potentially hazardous situations could result in serious injury, fire, or death. • Do not attempt to install or service the GVN 53 unless you are a professional electronics installer. Installing or servicing the unit without training and experience in electronic equipment and automotive accessories may be dangerous and could expose you to the risk of electric shock or other hazards. • When extending ignition, battery, or ground wires, use automotive-grade wires or other wires with AWG 18 (0.75 mm greater. CAUTION Failure to avoid the following potentially hazardous situations may result in injury or property damage. • Make sure to ground the unit to the chassis of your vehicle.
Getting Started GPS antenna GVN 53 and metal plate Before you begin installation, disconnect the negative battery cable. Then follow the steps below to install the GVN 53. ➊ Install the GPS antenna Install the GPS antenna on the outside of the vehicle on a metal surface or metal plate. The plate or surface must be at least 3.5 inches by 3.5 inches square. The GPS antenna must have a clear view of the sky and must be placed horizontally for best GPS reception. See the next page for further instructions. CAUTION The permanent adhesive on the back of the metal plate is extremely difficult to remove after it is installed. ➋ Connect the wiring harness Connect each wire to the appropriate signal in the vehicle. Note that some wires are optional. Refer to the wiring diagram for more information. Wrap any unused wires with electrical tape; do not leave any metal exposed.
Acquiring GPS Signals The first time you turn on the GVN 53, you must wait while the system acquires satellite signals for the first time. This process could take up to several minutes. Make sure your vehicle is outdoors in an open area away from tall buildings and trees for fastest acquisition. After the system acquires satellites for the first time, it will acquire satellites quickly each time thereafter. Changing the Fuses If you need to replace a fuse on the red or yellow wires, make sure the wires are not touching to prevent a short circuit. Then replace the old fuse with a new 2 Amp fuse.
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