9
3. Drill four 0.120 diameter (#31 drill) mounting
holes at the marks scribed in step B.
4. Using a keyhole saw or sabre saw, saw into the
mounting surface at the cutmark scribed in step
B.
NOTE:
Before completing the Control Head
installa tion, perform the procedures in paragraph
3-4, Electrical Installation.
5. With all wiring connections complete, place
the Control Head in position and secure to
mounting surface with four (4) #6B Phillips
head thread-forming screws (supplied).
3-4. ELECTRICAL INSTALLATION
When installing equipment inside air bag
equipped vehicles, the installer MUST ensure that
the equipment is installed ONLY in areas
recommended by the vehicle manufacturer.
Failure to observe this warning will reduce the
effectiveness of the air bag, damage the air bag,
or potentially damage or dislodge the equipment,
causing serious injury or death to
you or others.
A.
Control Cable
The control cable is designed to be installed
between the Amplifier and the Control Head. It
consists of an 8-conductor cable terminated on both
ends with RJ45 connectors. To install the control
cable, proceed as follows:
1. Install the one end of the control cable to the
mating connector on the Control Head.
2. Route the control cable toward the Amplifier.
DRILLING PRECAUTIONS: When drilling into
a vehicle structure, be sure that both sides of
the surface are clear of anything that could be
damaged. All drilled holes should be deburred and
all sharp edges should be smoothed. All wires
going through drilled holes should be protected
by a grommet or convolute/split-loom tubing.
Additionally, all exterior drilled holes must be
sealed with Motorcraft seam sealer T-A-2-B or
equivalent to prevent the potential exposureto
carbon monoxide or other potentially harmful
fumes. Failure to observe this warning could cause
serious injury or death.
c. If routing the cable requires drilling a hole
in sheet metal or other material, drill a 5/8"
hole in the material. Install a 5/8" grommet
(not supplied) or similar protective device
in the hole, to protect the cable from
damage which sharp edges could cause.
d. Install the other end of the control cable to
the mating connector on the Amplifier.
B.
Siren Connections
The unit is supplied with an eleven-position
connector to perform the electrical installation.
User-supplied 14-gauge red and black wires
are required for the positive (+) and ground (-)
connections. User supplied 18-gauge wires are
required for the speaker, radio, horn switch, park
switch, backlighting, and case ground connections.
To install a wire in the eleven-position connector,
strip 1/4" of insulation from the end of the wire.
Then insert the wire into the connector and tighten
the screw at the appropriate connector position.
1.
Speaker
The unit is designed to operate with one 11-
ohm impedance speaker (100W) or two 11-ohm
impedance speakers (100W).
When using one 100W speaker, use 18 gauge wire
and connect the speaker leads to positions 1 and 2
of the eleven-position connector as shown in figure
3-1.
Improper diagnostic test indications will result
if speakers are connected in parallel. DO NOT
connect speakers in parallel.
When using two 100W speakers, they must be
connected in phase. See figure 3-1. On FEDERAL
speakers, this can be accomplished (using 18 gauge
wire) by connecting the two speaker leads marked
“2” to position 1 of the eleven-position connector.
Connect one of the speaker leads marked “1”
to position 2 of the eleven-position connector.
Connect the other speaker lead marked “1” to
position 3 of the eleven position connector.
2.
Radio
See figure 3-1. To allow incoming radio messages
to be rebroadcast over the outside speakers,
