I could try to explain it
You will need this kit which I purchased from aliexpress.com
I bought a 7 inch tablet went with a cheap one since didn't know how it was going to come out
Used 3m tape to hold the tablet in place to the base
Power is ran with USB cable to charging port.
You will need to install a app call automate to control on and of power since tablet will always be on and won't have access to unlock screen that's the hard part
I also purchased from ebay a aux to bluetooth device which is how I get sound to place to the stero
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