Entune 8" Head Unit Inputs

Maybe someone has removed their radio, and looked on the back. Otherwise, I'm looking for a diagram and instructions that might answer my question.

So then, I plan on using a

$50 Motorola MA1 , The Only Google Authorized Wireless Android Auto Car Adapter, Smartphone to Screen Wireless Bridge Car Accessories, USB Type-A

Motorola MA1 Wireless AndroidAuto dongle and I wish to either use a switch-plate with an additional set of USB ports for charging (no I don't want to use the connectors in the arm rest storage). I'd like something that can do 3.0. Or, I may wish to use an additional jack on the back of the radio (if there is one) to connect the MA1 to, and I can hide/mount with double-sided tape the behind the radio, or the button area so it is out of sight.

One option is to use the cigarette lighter connector, and put in a USB charger with Voltage display there (yes, I like double-checking my battery is being charged nicely by the alternator and staying a bit above 13VDC). I can get one with blue digits which would match the instrument lighting in the truck. That would be a viable option.

It would be really cool if I can throw my phone on the wireless charging pad, then connect wirelessly to the AndroidAuto dongle feeding the Entune Head Unit.

 

Someone. Anyone. Where does one get a good description of the back side of these Entune ratios? I think the truck will have Entune Plus 3.0. So I think the manufacturer is Fujitsu. I think the thing handles more than one USB tether for charging and data transfer.

Another potential project is putting in another AC outlet from the inverter, inside the cab. Yes I have an inverter I could plug into the cigarette lighter, but there's already one in-between the front seats. There are videos on doing this... A possible future mod for me.