
HORIZON
NAVIGATION
1) Determine the location to connect to the vehicle speed signal. Refer to www.horizonnav.com. (customer
service)
2) Determine the location to connect to the remaining vehicle signals required by NavMate. See chart on Pg. 5
for signal requirements and NavMate wire colors.
3) Determine general component layout, e.g., where the controller will be mounted.
Connect wires and route cables
1) Connect wire harness to vehicle using splice(piggyback)method. Using a multimeter, verify the battery,
ignition, ground, and backup connections.
The NavMate Navigation System wire harness has five wires which must be connected to the vehicle. See
chart on Pg. 5 for requirements.
Ground (black): Connect to a vehicle ground. Maintain the shortest ground loop possible by connecting
directly to a body ground point if available.
Ignition (pink): Connect to a circuit which is powered only with the key on/run. An example is the turn signal
circuit.
Battery (red): Connect to a circuit which is powered constantly. An example is the hazard signal circuit.
Reverse (light green): Connect to a circuit which is powered only when the vehicle is in reverse. An example
is the backup light.
Speed signal (green/white OR yellow):: :: : The vehicle must have a vehicle speed signal (VSS) output in the
form of a square wave or a sine wave. Use the green/white or the yellow wire, depending on VSS type. (See
chart on Pg. 5.) Connect to a circuit which carries the signal that drives the odometer.
Special attention must be given to the vehicle speed sensor (VSS) connection. For vehicles with a digital signal
(square wave, TTL) connecting to the green/white striped wire will provide a proper signal.
In some vehicles (e.g., certain Ford/Lincoln/Mercury ), the vehicle speed signal comes from a variable
reluctance sensor which has a sine wave output. Connecting to the yellow wire will provide a proper signal.
Some vehicles do not have a speed signal that is available to NavMate (e.g., most vehicles built before 1982,
and vehicles with speed signal carried on a bus). At this time, NavMate will not work in these vehicles. Please
consult the VSS information available through www.horizonnav.com or the vehicle service manual.
For installation in the 2000 Town Car and Lincoln LS, a Speed Signal Interface Unit (Model SGI-5)
From Dakota Digital must be added to the output shaft sensor (OSS). To order this part, contact
Dakota Digital at www.dakotadigital.com or call toll free, 800-852-3228. For additional information
go to www.dakotadigital.com .