Figure 13 Alternator Whine Suppressor Isolation Detail; Table 1 Radio Functions Connections - Motorola Spectra Installation Manual

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Conductor
Connected to battery
Connected to ignition
switch
Ignition switch controls
In any application, trim and strip wires. Crimp on ring lug for battery connections. For ignition switch connections, crimp
on ring or spade lug (whichever is required).
Note: In cases where alternator whine or interference is a problem, isolate the green lead with a relay (Motorola Part No.
5900813674) (see Figure 13).

Table 1 Radio Functions Connections

Green
Orange
X
X
No ignition switch control
RECEIVER
CONTROL CABLE
(GRN)

Figure 13 Alternator Whine Suppressor Isolation Detail

If either wire is to be connected in the vehicle's battery compartment, pass
the end of the wire through the same firewall hole that the red radio power
cable uses. At this point, install a fuseholder assembly in both wires
(shown in Figure 14); the following procedures apply to both green and
orange wires:
A fuse will need to be placed in-line for both the orange and green
wires; consideration should be taken when deciding where to place
the fuses so that they are easy to inspect. However, they should also
be placed as close as possible to the battery or the vehicle's ignition
switch terminal.
After choosing the fuse locations, the fuse receptacles need to be
installed. This is done by cutting the wire at the chosen location and
stripping 1/8-inch of insulation on all loose ends. Make sure the wire
will reach its intended destination.
On the end still connected to the cable kit, slide the plastic insulator
fuseholder over the wire as shown in Figure 9. Insert the stripped end
of that wire into one of the metal fuse clips, and crimp it closed onto
the exposed wire. Solder it for a better electrical contact.
On the end of the loose wire, repeat the above crimping and soldering
process with the remaining metal fuse clip.
Green
Orange
X
X
Transmitter ignition switch
controlled
RELAY
MOTOROLA PART NO.
59-00813674
ON/ACC
IGNITION SWITCH
Green
Orange
See Note
X
Complete radio ignition
switch controlled
VEHICLE BATTERY
+
-
HOT
CHASSIS
PART OF
VEHICLE WIRING
MAEPF-21362-O
15

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