PAC AP4-TY12 Manual

AP4-TY12
Introduction and Features
The AP4-TY12 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-TY12 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 amplifier turn on wire is also provided by the AP4-TY12. When used in conjunction with the APA-TOS1 (sold
separately), the module can provide a variable 2-channel fiber optic digital audio output (TOSLINK).
Important Notes
1. Only compatible in vehicles equipped with a data bus controlled premium sound system. To verify compatibility in Toyota,
look for a JBL logo on the radio. In Lexus, compatible applications will have a center channel or factory subwoofer.
2. The AP4-TY12 does not support retention of the Easy Speak function.
3. Toyota Safety Connect and Lexus Enform (SOS) can easily be retained. See the Tech Brief "AP4-TY12 SOS Retention" at
PAC-audio.com for detailed instructions.
4. The factory radio's speed controlled volume, DSP, and surround sound mode are not supported by the AP4 outputs.
5. The factory amplifier must remain connected, and in the vehicle after the AmpPRO has been installed.
6. Prior to testing, cycle the ignition off and back on again to properly initilize the AP4-TY12.
7. 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.
8. Initially, if the beep through the AP4-TY12 does not match the on / off selection through the radio, cycle the beep to the
opposite setting and back, then test again.
9. 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 Configuration section on page 2
for more details.
10. 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-TY12.
11. The remote output is rated at 2A of current. If more current is needed, an external relay must be used.
12. 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.
13. The level control knob must be connected in order to manually adjust the beep volume and minimum volume settings.
14. No adjustments can be made manually using the programming button when the module is connected to a PC.
15. Due to variations between various OEM radios and even between radio modes, the radio output voltage may vary slightly
from the selected 5 volt (or 4 volt when DIP switch 2 is down) output.
Wiring Connection Chart
28 - Pin
6 - Pin
10 - Pin
AP4-TY12-HAR
To Radio
* See Page 2 Installation Notes 11 and 12 for further details regarding the Mute Input leads.
Pacific Accessory Corporation
Remote Turn On Output (2A Max)
Remote Turn On Output
Mute Input From Navigation *
2A Max Output
Mute Input From Telematics *
To Vehicle
Harness
© 2017 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
PAC-audio.com
Advanced Amplifier Interface
for Select Toyota / Lexus Vehicles
1(L) 2(R)
Front
Non-Fading
Level Control
Knob
3(L) 4(R) 5(L) 6(R)
Rear Non-Fading
To Aftermarket
Ampli er
Rev. 111317
Page 1