Table 2-1. Radio Functions Connections - Motorola ASTRO XTL 2500 Installation Manual

Standard Configurations: Radio Mounting
2.2.2.2.2 Remote Radio Control Cable Installation
The radio control cable should go from the rear of the control head to the radio. Route the cables in
the vehicle's wiring troughs (where available) or route the cables where they are protected from
pinching, sharp edges, or crushing. One suggested route is along one side of the driveshaft hump
under the carpet. Use grommets in any holes where the cable passes through metal panels.
Figure 2-23 shows how the cables and components are connected.
2.2.2.2.3 Transmit/Receive Control Cable Installation
The radio system includes three separate wires, one yellow (66") one red (106") and one black. The
HLN4952_ Fuse Kit contains crimp-on ring tongue lugs and crimp-on spade lugs. The spade lugs
allow connection to hot leads at the fuse block of the vehicle, and the ring tongue lugs permit
attachment to screw terminals. Determine from
through the vehicle ignition switch.
A typical system allows the receiver to operate with the radio switched on while the ignition switch is
in the off position, but the transmitter will not operate unless the ignition switch is in the on position.
In this case, connect the yellow wire to the accessory terminal of the ignition switch and the red wire
to the ungrounded terminal of the battery or starter solenoid.
!
C a u t i o n
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).
HLN6923A
CAUTION: DO NOT connect either lead to the ungrounded
terminal of the battery until you have finalized the installation and
have been instructed to do so.

Table 2-1. Radio Functions Connections

Red Yellow
X X
No ignition switch control
Table 2-1 which radio functions are to be switched
Red Yellow
X
X
Transmitter ignition switch
controlled
2-13
Red Yellow
X X
Complete radio ignition
switch controlled
October 12, 2005