156 90000-508
G3
Installation Guide
6
The DC Power connector has:
•
At position “A”, the smaller red
switch-sense wire (commonly to igni-
tion)
•
At position “B”, the blue ground wire
•
At position “C”, a larger red B+ DC
power wire (MUST be unswitched)
Figure 3 - DC Power Connector
3.
Place this connector at G3
’s radio
power input location. Do not connect at
this time. See paragraph 2.6, “Complet-
ing the physical installation”.
4.
Carefully route both the B and the C
wires to where the in-line fuse holder
will be installed, usually as close to the
vehicle’s battery as practicable. Ensure
that leads do not chafe on any metal
part(s). Secure the wires at several loca-
tions along their length.
Caution:
Use proper crimping tool.
Common pliers are NOT
acceptable.
Warning:
The DC Power lead must be
unswitched
5.
Insert the negative (blue) lead into one
of the appropriate connector lug and
crimp solidly to force the metal contacts
onto the wires.
6.
Repeat the step above for connecting the
red DC power lead.
7.
Attach the positive lead at the battery
positive terminal. Attach the negative
wire at the vehicle end of the battery
ground cable.
If the negative cable is con-
nected directly to the battery
negative terminal, it should be
fused in case of failure of the ve-
hicle’s ground cable.
Ensure tight and secure connections.
8.
Fasten the fuse holder and leads.
9.
Carefully route the A wire to where the
connection will be made for switch
sensing.
•
Connect to “Ignition” if you wish to
have G3
turning ON and OFF de-
pendent on the vehicle’s ignition
key.
•
Connect to “Accessory” if you wish
G3
to be available when the en-
gine is not running, but still depend-
ent on the ignition key.
•
Connect to a user-supplied control
switch.
•
In installations equipped with a
“ChargeGuard”, connect to the con-
trolled-side of the ChargeGuard
(remembering that the DC Power
lead must NOT be switched).
10.
Make appropriate connections.
Cautions:
Where scraping to bare metal was
required, and at the battery posts
where wire ends and lugs may be
exposed, apply anti-corrosion com-
pound.
Insert the fuse only when installa-
tion is complete and ready to test
.
11.
At the G3
position, neatly coil cable
slack and attach securely.
A
B
C
IGNITION
(Small red wire)
GROUND
(Blue wire)
13.8VDC B+
(Fused Red wire)
SEAL
(DO NOT REMOVE)