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Pacific Accessory Corporation
Page 3
Rev: 4
Date:02022021
Advanced Amplifier Interface
for Select Toyota and Lexus Applications
AP4-TY13 R.2
Installation (cont.)
DIP Switch 3 Configuration
For the vehicle models listed below, DIP switch 3 should be set to on (down). These vehicle models have been found to have
a lower audio voltage output from the radio than that of other model vehicles. Setting DIP Switch 3 to ON (down) will increase
the input gain of the AP4 to accommodate this lower audio voltage from the radio and enable the AP4 to produce the proper
5v of audio output when installed into these model vehicles. Do not set DIP switch 3 ON (down) if your vehicle model is not
listed below. Doing so will cause the AP4's audio output to clip at all volume levels.
MAKE:
MODEL:
Toyota
4Runner
Toyota
Camry
Toyota
Tundra
Toyota
Sequoia
Safety Connect / Lexus Enform (SOS) Retention
In order to retain the factory feature of muting the radio's audio while an SOS call is taking place, the Yellow / Black "SOS
Mute" must be connected to the Telematics Mute Trigger wire in the vehicle. The Telematics Mute trigger wire is in the white
24pin connector at the factory amplifier (reference connector image and pin location below). A military splice connection to this
wire will be adequate.
12 11 10 9
8
7
6
5 4
3
2
1
24 23 22 21 20 19 18 17 16 15 14 13
WIRE SIDE
WHITE
