Well first things first, don't install an iPad... Use the AUX hard line input, an in-dash mount, and a wireless power cradle to install a decent Android phone with a good audio player, and large SDXC card. I personally use a Galaxy S7 with a 512GB SDXC card running a custom install of Android 8, and using the PowerAmp music app. Best rig I've ever assembled, and sound quality is excellent.