GVN 52
installation instructions
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 52 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 mm2 gauge) or
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.
• Secure all wiring with cable clamps or electrical tape. Insulate unconnected wires; do not allow any bare wiring to remain exposed.
• Do not let unconnected wires or terminals touch metal on the vehicle or anything else that can conduct electricity.
• Do not expose the GVN 52 to water or other liquids. The GVN 52 is not waterproof.
June 2006
Part Number 190-00495-13 Rev. A
Printed in Taiwan
Getting Started
RF Remote
GPS antenna and
metal plate
GVN 52
Screws (4)
Hook and loop
fasteners (2)
Wiring harness
Remote control
Before you begin installation, disconnect the negative battery cable. Then follow the steps below to install the GVN 52.
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.
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. Refer to the wiring diagram for more information. Wrap any unused
wires with electrical tape; do not leave any metal exposed.
➌ Install the GVN 52
Use the screws or the hook and loop fasteners provided to mount the GVN 52 in the vehicle. Select a location that allows you to
access the unit’s SD card slot. We recommended installing it under a seat or in another place close to the driver. Do not install the
GVN 52 inside a metal housing or where it might be shielded from you by a metal object. If there are large metal objects between
you and the GVN 52, the remote control may not work.
Do not install the unit where it will be exposed to direct sunlight, excessive heat or humidity, or dust. Use only the screws
provided. If you use the wrong screws, you could damage the unit.
➍ Install optional accessories
You can install an optional XM Smart Antenna (such as the GXM 30) either inside or outside the vehicle. Like the GPS antenna, it
must have a clear view of the sky. If you use an extension cable with the XM antenna, wrap the two connectors with electrical tape.
For information on installing an optional FM traffic receiver (such as the GTM 10), refer to the Installation Guide included with the
traffic receiver.
➎ Test the installation
Reconnect the negative battery cable, and then turn on the audio/video system to ensure that everything is connected and is
functioning properly. Install batteries in the remote. Then test the remote control to ensure that it is working. If the remote control
does not work, you may need to move the GVN 52 to a different location in the vehicle.
Optional accessory:
XM Smart Antenna or
FM traffic receiver
Composite video
mode switch
SD card
Yellow RCA
Composite Video
Audio L
White RCA
Audio R
Audio Mute
GVN 52
Black (GND)
To vehicle chassis
Red (ACC)
To ignition (12 V)
Yellow (BATT)
To battery (12 V)
Do not connect the yellow wire
directly to the vehicle battery.
Doing so may cause the wire
insulation to fail and may pose a
risk of short circuit and electric
GPS antenna
Car fuse box
Best (roof of
Good (inside car
on dashboard)
Installing the GPS antenna
Better (trunk
of vehicle)
Press the metal plate down firmly on your dashboard or
other mounting surface. You can bend the metal plate to
conform to a curved surface, if necessary.
Peel the backing off of the adhesive on the bottom of the
metal plate.
To mount the GPS antenna inside your vehicle:
Clean your dashboard or other surface.
Place the GPS antenna on top of the metal plate.
Car fuse box
(main fuse)
Ignition key switch
Connect the ignition wires to a power
source that can be turned on and off
with the ignition key. If you connect the
ignition wire to a power source with a
constant voltage supply, such as battery
wires, the vehicle’s battery may die.
Acquiring GPS Signals
The first time you turn on the GVN 52, 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.
When replacing a fuse, use only a new fuse with the prescribed rating. Using a fuse with the wrong rating may cause your
unit to malfunction. Disconnect the wiring harness before replacing a fuse to prevent short circuits.
Operating Temperature:
Storage Temperature:
Operating Voltage:
Current Consumption:
ACC off Current:
Map Storage:
Acquisition Times:
Update Rate:
GPS Accuracy:
5°F to 158°F (0°C to 70°C)
-40°F to 185°F (-40°C to 85°C)
9.5 V to 25 V
0.12 A typical at 13 V (Max 1.0 A at 13 V)
70 uA typical at 13 V
1 3/16" H x 4 3/4" W x 4 5/8" L (30 mm x 120 mm x 117 mm)
0.41 lb (184 g)
Internal non-removable memory (pre-loaded City Navigator map data on European and North American units) and
optional removable SD card
System/power, GPS antenna, SD card slot, Mini-B for optional XM (only on the U.S. version) or FM traffic receivers
12 parallel channel GPS receiver
1,575.42 MHz
Approx. 15 seconds
Approx. 45 seconds
Approx. 2 minutes
1/second, continuous
15 meters (49 feet) RMS 95% typical with GPS
DGPS (WAAS) Accuracy: < 3 meters (10 ft) 95% typical with DGPS (WAAS/EGNOS) corrections
External GPS antenna, requires metal surface, such as a car roof or the included metal plate. A larger metal
mounting surface improves GPS reception.
Composite Video Switch
NTSC (default)
Video quality varies depending on the display.
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