Product Datasheet/Brochure
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Pacific Accessory Corporation
Page 4
Rev. 122017
Lexus / Toyota Amp PRO
Retention of SOS
(Safety Connect / Lexus Enform)
Technical Bulletin
Method 3 (using a separate speaker):
Method 3 bypasses the Safety Connect Module and uses an external speaker (not supplied) to provide
the SOS audio.
• Method 3 will require running a wire from the AmpPRO harness Yellow / Black wire labeled "Mute
Input From Telematics" to a wire at the Safety Connect Module. Refer to the "Vehicle Connections"
section on page 5 for vehicle specic information. It also requires cutting the audio input and output
wires at the Safety Connect Module, and insulating the input wires that lead back to the factory amp (to
prevent shorting them out). Extend a speaker wire from the Safety Connect audio output wires to an
external 4 ohm speaker and hide it in a place where it will be audible (commonly under the dashboard
on the driver's side of the vehicle facing downward). If the vehicle has a center channel speaker that
is no longer being used, it is possible to run the speaker wires to this speaker rather than adding an
additional speaker. See "Fig. 2". Refer to the "Vehicle Connections" section on page 5 for information
regarding where the Safety Connect Module is located and what wire to extend the Yellow / Black wire
to.
Safety
Connect
Module
Factory Amplifier
Rear Left Speaker Outputs
Rear Right Speaker Outputs
Front Left Speaker Outputs
Front Right Speaker Outputs
Cut and Insulate Speaker Wires
Front Right SOS
Speaker Inputs
Center Channel
or External Speaker
(4 ohm)
Right Front Outputs
Rewired to Different
Speaker
Telemacs Mute
Ground Out
Connect Yellow / Black
“Mute Input From Telematics”
to the SOS Mute Trigger
Mute Input From
Telemacs
Fig. 2