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Pacific Accessory Corporation
Page 8
Rev: V2
Date:032718
Advanced Amplifier Interface
for Toyota / Lexus
AP4-TY11
Voice / Nav Audio Connections (cont.)
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). 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. Refer to the "Vehicle Connections Chart" section below for
information regarding where the navigation module is located and where to connect the Brown wire. Applications that use
the Brown wire will be marked with a single asterisk (*) and the wiring information will be given below the vehicle chart.
For this method, none of the White / Red and White / Blue connectors ("To Amp PRO", "A", "B" or "C") will be used. See
the Config C, Version 3, Method 3 diagram above.
Config C
Version 3 Method 3
Factory
Nav
Module
Factory Amplifier
Left Rear Speaker Output
Right Rear Speaker Output
Left Front Speaker Output
Right Front Speaker Output
Cut and Insulate Speaker Wires
Left Front Speaker Input
Center Channel
or External Speaker
Left Front Output
Rewired to Different
Speaker
Mut
e Input Fr
om
Na
vig
ation
Nav Prompt
Ground Out
(when available)
•
Config C, Version 3:
Method 3
bypasses the factory navigation
module and uses an external speaker (not
supplied) to provide the voice prompts and
navigation audio.
Method 3 may require running a wire from
the
AP4-TY11 harness brown wire labeled
"Mute Input From Navigation" to a wire
at the navigation module. It also requires
cutting the audio input and output wires at
the navigation module and insulating the
input wires that lead back to the factory
amp (to prevent shorting them out).
Extend a speaker wire from the navigation
audio output wires to an
•
Config C, Version 3,
Method 2 (cont.):
Next, plug the 2-pin connector on the "C"
harness into the 2-pin receptacle on the
AP4-TY11 harness labeled "To Amp PRO".
Refer to the "Vehicle Connections Chart"
section starting on page 5 for information
regarding where the navigation module is
located and where to connect the Brown
wire. See the Config C, Version 3, Method 2
diagram on page 7.
Setup and Configuration
1. Turn the ignition on. LED 1 on the interface will turn on and the +12v remote output will turn on.
2.
Set the amp gain(s) to the desired level. We recommend using an oscilliscope and test tones to set the amp gain(s). Please
refer to the MECP Advanced study guide if you are unfamiliar with this process.
3. Check volume, balance, fade and EQ settings.
4.
If you would like to adjust the minimum volume, do so using the method outlined on the next page. If you are happy with the
default level then no further adjustments are required
5. If you would like to adjust the radio's beep volume or minimum volume, do so using one of the methods outlined below. If
you are happy with the default levels, no adjustments are necessary.
Manually Setting the Radio's Beep Volume
You can manually set the level of the factory radio beeps using the programming button on the side of the interface. If you would
like to set the beep volume using the PC app please proceed to the AmpPRO App section.
