DVM-500Ultra Installation Guide REV B
Page 12
STEP 7:
GPS Connection
The GPS antenna should be placed on the outside of the vehicle for the best possible reception. If
desired, the antenna may be mounted internally such as the roof of the trunk, as long as there are no
metal objects or other sources of RFI near the receiver. Use high quality Velcro or double-sided tape if
mounting internally.
GPS antenna
STEP 8:
Power, Ignition, Ground, and Trigger Connections
Connect the
power and sensor input wiring
harness
(11-wire, 14-pin, multicolored) to the
interface box and follow the included wiring
chart on page 13 to connect the desired
optional inputs and record triggers. Insert the
two 7.5 AMP fuses into the slots located on the
side of the interface box, as shown in the
picture below.
Secure the monitor DB9 serial cable to the I/O
box using a small flathead screwdriver.
I
t is recommended that these connections are made directly to the battery wiring harness for best results.
These wires should be used ONLY for the DVM system and not be tapped into for installation of any other
equipment in the vehicle. Doing so, could result in possible radio frequency interference from the other
equipment.
It is highly recommended to install the provided 7.5 Amp fuse and holder on the Red +12V power source wire.
Doing so will provide the proper protection for the wiring between the source and the device.
