Benefits

• Simplifies amplifier installation
• Prevents the need for summing and DSP devices
• Provides factory sound system upgrade solution

Features

• It can be used to upgrade the entire sound system or just part of it thanks to the retention of the original amplifier
• Enables the addition of a subwoofer system to the original sound system
• Upgrade solution for factory, fixed level, data-bus controlled sound systems
• Everything you need in one box to install your choice of aftermarket amplifier(s)
• The time-saving design prevents the need for summing and audio correction devices.
• Variable volume, fade, balance, bass, mid, and treble audio settings
• Retains Bluetooth, navigation, safety system, and all warning chimes
• Front, rear, sub preamp outputs (5 volt RMS)
• Provides flat audio output for a solid audio foundation
• Customized OE bass, mid, and treble center frequency selection
• Plug-n-play installation with two 20-pin connectors (IE Bus)
• Remote sub level controller included
• Optional TOSLINK optical output (APA-TOS1 sold separately)

AmpPRO module
Harness (IE Bus)
Bass knob
Knob harness
Manual

COMPATIBILITY INFORMATION

Vehicles with Telematics (ie: SOS, Enform, etc) will require some additional wiring. See manual for details.

• Vehicle must be equipped with a JBL system. There must be an actual visible label that says JBL or JBL Synthesis. If the vehicle is equipped with a factory amplifier but does not say JBL, it is not compatible because the amplifier is analog and not digital.
• Lexus vehicles equipped with the Mark Levinson system are not compatible.
• Lexus vehicles equipped with navigation are not compatible.
• Lexus CT200h: Must be equipped with a center channel and a subwoofer
• Between 2012-2015 Toyota used two different styles of connectors. In order for the AP4-TY12 to be compatible, the radio must have the 10 / 6-pin BHA1761 style connector. Vehicles equipped with the 20-pin BHA8113 style connector are not compatible. The only way to know what connector the radio has is to physically remove it from the dash and look at it. Please see pictures below for reference.

APPLICATON GUIDE