User Manual

14221-1200-4000, Rev. A
47
The white ignition sense wire must be connected to a fused power source that switches
from approximately zero volts to approximately +13.6 volts when the vehicle’s ignition
switch/key is turned from the OFF position to the ACCESSORY and RUN positions.
Use of a switched power source that is subject to voltage changes as a result of other
actions, such as opening a vehicle door, may result in undesirable radio power cycles.
1. Locate the vehicle’s switched ignition or “Accessory” power connection point that will be used for
the switched ignition 12-volt DC power source. This point is typically located at or near the vehicle’s
fuse panel. It may be necessary to consult the vehicle manufacturer’s wiring diagram.
2. Route the white wire of the radio’s DC Power Cable from the back of the radio to the area near this
connection point. Protect the wire from possible chafing as necessary.
3. Obtain the yellow waterproof (HFB-type) fuse holder included with the radio’s DC Power Cable.
4. Cut excess length from the white wire and splice the fuse holder into it, near the location of the
connection point.
5. Using an appropriate electrical terminal, connect the white wire to the switched power connection
point. An open-barrel spade terminal is included with the cable for this purpose, but another type of
terminal (not supplied) may be used as required.
6. Obtain the 3-amp AGC-type fuse included with the cable, and install it into the fuse holder.
7. Tie and stow all wiring as necessary so it remains out of the way of casual contact and wire chafe is
avoided.
8. Continue with the speaker installation procedures presented in Section 9.1 on page 68.
7.2.2.3.2 Radio Turns On and Off with a Manual Switch
With this wiring configuration, the radio (and its control head) is manually turned on and off via an on/off
switch mounted separately from the radio, not through the vehicle’s ignition switch/key. This
configuration is used when, for example, the radio must remain on even when the ignition key must be
removed from the vehicle and
a separate on/off switch is acceptable and/or required. In this configuration,
the white wire connects to a fused switched power source such as that provided by a toggle switch
mounted on the vehicle’s dash panel. When using this configuration, the on/off/volume control must be
left in the on position. Otherwise, the radio will remain off when the switch is on.
1. Route the white wire of the radio’s DC Power Cable from the back of the radio to an area near the
location of the panel-mounted on/off switch. Protect the wire from possible chafing as necessary.
2. Cut a short section (6 to 8 inches) off the end of the white wire and strip the ends.
3. Obtain the yellow waterproof (HFB-type) fuse holder included with the radio’s DC Power Cable, and
crimp one half of it to one end of the short section of wire.
4. Using an appropriate electrical terminal, connect this short white wire to unswitched 12-volt DC
power source at or near the vehicle’s fuse box.
5. Cut another section of white wire from the cable. This wire must be long enough to reach from the
fuse holder to the location of the panel-mounted on/off switch.
6. Strip one end of this wire and crimp the other half of the waterproof fuse holder to this wire end.
7. Strip the other end of this wire and, using an appropriate electrical terminal, connect it to the common
terminal of the switch.
8. Connect the white wire of the power cable to the load (switched) side of the switch.
NOTE