Installation Manual

3-4 Options and Accessories Installation Accessory Installation
3.1.2 Horn and Lights (External Alarm) Relay
Allows the user to be alerted to an incoming call when away from the vehicle. The vehicle's horn or
lights or both are used depending on which option is connected to the accessory port. When the
radio receives a call alert or emergency alarm/call, there is a delay before activating the horn and/or
lights. The delay is programmable using the Horn & Lights Delay Time feature in the CPS. Once
activated, the Horn and/or Lights remain active depending on the option selected. The Horn & Lights
feature can be toggled between ON or OFF, via a short or long programmable button press (Horn &
Lights On/Off) or Horn/Lights (Utilities Menu) feature.
For installations that use the horn/lights option, select a suitable location for mounting (normally
under the dash) and, referring to Figure 3-4, perform the following procedure:
1. Horn Relay – Connect the relay contacts across the horn ring switch, typically found in the
steering column. Connect the two control wires (female pins) into locations 26 and 18 of the
connector.
2. Lights Relay – Connect the relay across the headlamp ON/OFF switch, typically found in the
steering column. Connect the two control wires (female pins) into locations 26 and 18 of the
accessory connector.
Figure 3-4 Horn and Lights Wiring Diagram
Y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
D+
Vbus
SW B+
Spkr-
Tx Audio
A
ux Audio Out 1 / RxD
Aux Audio Out 2 / TxD
GP5_1 (PTT)
GP5_2 (Monitor)
GP5_3 (Chan Act)
Emerg Sw
Ign Sense
D- USB / MAP_ID Ground MAP_ID_1 Power Ground Spkr+ Audio Ground
Rx Audio Ground
Ground GP5_6 GP5_7 GP5_8 VIP_1 (Ext Alarm)
MAP_ID_2