This guide will show you how to use your iPad as a "stand alone" optical head unit cabable of streaming Hi-Res audio, with fully tunable Digital Signal Proccessing for your aftermarket car syereo system.

This configuration turns your iPad into the ULTIMATE HEAD UNIT!

Parts needed (Amazon links)
- Apple Multi AV Dongle
- Cubilux USB-A to Optical adaptor
- Optical SPDIF Cable
- USB-C Charging Cable
- 12 Volt USB-C Charger
- Female 12 Volt Socket 
- Audio Control DSP
- Audio Control ACR-3 Volume Knob

Connection Diagram

Instructions

The Apple Multi AV Dongle will allow you to connect, the Cubilux Optical adaptor and the USB-C charger to the iPad simultaneously.

The SPDIF optical cable will then run to the Audio Control DSP. The USB-C port on the Apple Multi AV dongle will run to the 12 Volt charger.

Wire the red power wire of the female 12 Volt socket to a 12 volt accessory power in your car, preferable from the stock radio harness. This will allow the iPad to charge when the key is turned on. Ground the black wire. The ground can also be connected to the ground wire on your stock radio harness. Connect the USB-C cable between the Apple Multi AV dongle and 12 volt car charger. Plug the car charger into the female 12 volt socket. 

Mount the Audio Control ACR-3 knob in the desired location. This will be the master volume knob for the stereo system. Plug the provided cable of the ACR-3 into the Audio Control DSP.

The RCA output of the Audio Control DSP will run to your aftermarket amplifiers. Now your ready to tune your DSP!