Features

Amplifier Integration Interface: The PAC AmpPRO AP4-TY13 (R.2 version) simplifies the installation of aftermarket amplifiers in select Lexus and Toyota vehicles with factory data-bus controlled premium amplified sound systems. With the AmpPRO AP4-TY13 (R.2), you can improve your vehicle's audio performance while keeping an original radio's fit, finish, and features.

Vehicle Compatibility: The PAC AmpPRO AP4-TY13 (R.2) amplifier integration interface is compatible with the following 2018-2021 Lexus and Toyota vehicles with factory data-bus controlled premium amplified sound systems.

6Ch Pre-Outs: The PAC AmpPRO AP4-TY13 (R.2) provides a 6-channel pre-amp output for use with aftermarket amplifiers. Using the full-range, fixed level factory radio output, in conjunction with data-bus CAN messages, the AP4-TY13 (R.2) delivers a variable 5V RMS pre-amp output with fading, balance, equalization, and level control capabilities.

Non-Fading Level Control Knob: Channels 5-6 (Sub) of the AP4-TY13 (R.2) are non-fading outputs. The output level of channels 5-6 can be controlled using the supplied level control knob. The level control knob comes with a 6' cable which plugs into the interface module and should be mounted in an accessible location.

Data Controlled Remote Turn-On: A data controlled remote amplifier turn on wire is also provided by the PAC AmpPRO AP4-TY13 (R.2). The remote turn-on is rated at 2A of current. If more current is needed an external relay must be used.

Retained Factory Audio Features: The PAC AmpPRO AP4-TY13 (R.2) also retains all audio from other vehicle features such as factory Navigation Prompts, Bluetooth, Safety System, and Warning Chimes. The Toyota Safety Connect (SOS) can also be retained (see Installation Instructions).

Minimum & Chime Volume: If the minimum volume of your factory radio is too loud once the AP4-TY13 (R.2) is installed, you can manually set the level of the minimum volume using either the programming button on the side of the interface or the factory SWC (Steering Wheel Controls) in conjunction with the supplied level control knob. You can also use AmpPRO PC app. You can also adjust the chime volume level. 

AmpPRO PC App: Using the AmpPRO PC App (for Windows PC only) allows you to configure user interface options such as Minimum Volume Level, Chime Volume Level, and a 3-Band EQ from your Windows computer or laptop. The app can also be used to update product firmware.

• Minimum & Chime Volume Level: From the app you can set the minimum volume level of the factory radio, as well as the chime volume level.
• Chime Enabling: This lets you enable or disable the radio "beep" tone that is heard when pressing radio buttons. It is also possible to disable the beeps using the factory radio's menu.
• 3-Band EQ: Enables the 3-band EQ (Bass-Mid-Treble) with frequency and Q-factory adjustment. The Bass Frequency can be set to 60, 80, 100, or 120Hz; while the Bass Q-Factor can be set to 0.5, 1.0, 1.5, or 2.0. The Mid Frequency can be set to 500, 1k, 1.5k, or 2.5k; while the Mid Q-Factor can be set to 0.75, 1.0, 1.25, or 1.5. The Treble Frequency can be set to 7.5k, 10k, 12.5k, or 15k; while the Treble Q-Factory can be set to 0.75 or 1.25.
• Firmware: The AmpPRO app will also allow you to update the interface with new firmware as it becomes available.

DIP Switches: Four DIP switches can be used for the following:

• Switch #1: Set to On for 2-channel mode.
• Switch #2: Lets you select the pre-out voltage, either 4V or 5V.
• Switch #3: When set to On, gives a +8dB boost to the input signal of the module.
• Switch #4: Not used, and should be set to the Off position.

Optional Toslink Add-On Module: When used in conjunction with PAC's APA-TOS1 (541APATOS1; sold separately), the AP4-TY13 (R.2) can provide a variable 2-channel fiber optic digital audio output (toslink). Toslink fiber-optical cable also sold separately.