Your amp will sound better than the factory amp You can make a less-than-ideal premium factory system actually sound premium by replacing the weak factory amplifier with a more powerful aftermarket amp. PAC's AmpPRO interface consists of a module and a vehicle-specific T-harness that make the job much easier. Now, you can install an amplifier of your own without losing any of your vehicle's factory audio features like warning chimes, navigation prompts, and Bluetooth functions. Simple to install The package's T-harness plugs into the factory radio and vehicle harness. The small module fits behind the dash, converting your radio's speaker outputs into six preamp-level outputs ready for connection to your amp. The factory radio controls, such as volume, balance, and fade, will work as before for your front and rear speakers. A separate wired remote level control lets you adjust the volume of the subwoofer channels from your front seat. An optional add-on module, PAC's APA-TOS1 adapter, provides an optical digital output for your high-end digital processors and amplifiers to handle. An app for tweakers After downloading the AmpPRO PC App and connecting to your Windows-run PC via USB, you can access the factory 3-band parametric equalizer (EQ) and customize the tone of your system to perfection. The app also lets you adjust the system's minimum volume level and update the product firmware when needed. General Features: Interface Module that Allows the Replacement or Addition of an Amplifier in select Ford Vehicles Compatible only with vehicles equipped with data bus premium sound system Plug-and-play installation 5 channel RCA output Amplifier turn-on trigger wire Non-fading level control knob Flat audio output for solid foundation Retains uConnect, Bluetooth audio and all warning chimes Prevents need for summing and DSP devices Customized OE bass, mid and treble center frequency selection