Owner's Manual

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Pacific Accessory Corporation

Page 1

Rev: 4

Date:02022021

Advanced Amplier Interface

for Select Toyota and Lexus Applications

AP4-TY13 R.2

The AP4-TY13 R.2 provides a 6-channel pre-amp output for use with aftermarket audio equipment. Using the full

range, xed level head unit output, in conjunction with data bus messages, the AP4-TY13 R.2 delivers a variable

5v RMS pre-amp output with fading, balance, equalization, and level control capabilities. The module also retains

audio from other vehicle features such as factory navigation prompts, Bluetooth and Voice Activation. An accessory

controlled remote amplier turn on wire is also provided by the AP4-TY13 R.2. When used in conjunction with the

APA-TOS1 (sold separately), the module can provide a variable 2-channel ber optic digital audio output (TOSLINK).

Introduction and Features

Important Notes

1. Toyota Safety Connect (SOS) can easily be retained. See the page 3 for detailed instructions.

2. The factory radio's speed controlled volume, DSP, and surround sound mode are not supported by the AP4 outputs.

3. The factory amplier must remain connected, and in the vehicle after the AmpPRO has been installed.

4. Prior to testing, cycle the ignition off and back on again to properly initialize the AP4-TY13.

5. The radio's beep setting must be enabled on the factory radio in order to hear the audible tones when making selections

through the radio.

6. Initially, if the beep through the AP4-TY13 does not match the on / off selection through the radio, cycle the beep to the

opposite setting and back, then test again.

7. The radio's beep volume and minimum volume levels are set to 0 dB by default. If you are happy with this level in your

particular application, additional adjustment is not required. Please refer to the Setup and Conguration section on page 4

for more details.

8. The Radio's Nav / VR Voice, incoming E-mail tone, Ringtone, In-Call, Incoming SMS / MMS tone and Incoming SMS Voice

volumes can be adjusted through the radio's settings menu as they were prior to installation of the AP4-TY13.

9. The remote output is rated at 2A of current. If more current is needed, an external relay must be used.

10. Channels 5 and 6 are non-fading outputs. The output level of channels 5 and 6 can be controlled using the supplied level

control knob.

Wiring Connection Chart

To Aftermarket

Amplier

Non-FadingRearFront

1(L) 2(R) 4(R) 5(L) 6(R)3(L)

Remote Turn On Output

2A Max Output

Non-Fading

Level Control

Knob

Remote Turn On Output (2A Max)

SOS Mute ( - Trigger Input )

GRAY

BLACK

28-pin

10-pin

Summary of content (6 pages)

PAGE 1
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications Introduction and Features The AP4-TY13 R.2 provides a 6-channel pre-amp output for use with aftermarket audio equipment. Using the full range, fixed level head unit output, in conjunction with data bus messages, the AP4-TY13 R.2 delivers a variable 5v RMS pre-amp output with fading, balance, equalization, and level control capabilities.
PAGE 2
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications Module Layout TOSLINK Output (APA-TOS1 sold separately) Feature Select DIP switches Non-Fading Level Control Knob Connection LED 1 LED 2 Interface Connector 1 Expansion Port Front Output Ch. 1(L) and 2(R) Programming Button Rear Output Ch. 3(L) and 4(R) Non-Fading Output Ch. 5(L) and 6(R) USB Connection Installation Set DIP switches to the ON position to activate the corresponding features.
PAGE 3
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications 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.
PAGE 4
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications 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 oscilloscope 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.
PAGE 5
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications AmpPRO App (cont.) PLEASE NOTE: These settings can be adjusted with the module installed in the vehicle, or on the bench. However, it is recommended to make the adjustments with the module installed, and the factory radio on, so that the changes can be heard. Minimum Volume Level - This allows you to set the minimum volume level of the factory radio (factory radio volume level 1).
PAGE 6
AP4-TY13 R.2 Advanced Amplifier Interface for Select Toyota and Lexus Applications Restoring Factory Settings You can restore the interface to factory default settings by pressing and holding the programming button on the side of the module until the status LEDs start blinking red. Once the LEDs start blinking red, release the button.