68015000181-LB
Chapter 4: Radio Installation
Figure 47: Connection Plan for the Ignition Sense Cable
Number
Description
1
Junction Box Terminal
2
To Ignition Switch, Ignition Switch Cable, Switched Battery Voltage
The ignition sense cable PMKN4120 allows the MTM5200/MTM5400 to be turned on and off by the
vehicle ignition switch
Figure 48: Connection Plan for External PTT
4.6.9
Installing the Cable
Procedure:
1 Connect the stripped lead of the fuse holder cable only to an ignition switched terminal of the
fuse block. Use the supplied terminal or any other suitable terminal.
2 Mount the fuse holder using the mounting hole, and dress wires as required.
3 Cut the thin cable to the required length, crimp the supplied red lead to the stripped lead of the
thin cable, and connect it to the blue terminal of the fuse holder cable.
4 Connect the other end of the ignition sense thin cable to pin 4 of the junction box terminal.
5 Insert the provided fuse into the fuse holder and close the cover.
CAUTION: PIN 4: If the ignition line is not used, it needs to be grounded. Interference
can cause radio to hang.
86
1
2
3
4
5 6
7
1
7
3
1
2
3
4
3
5
6
7
JUNCTION BOX TERMINAL
2
version a)
version b)
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