Software Booting and Tethering to and for TABLET in Automobile

One big issue with the tablet was the power button. and where i would have to put the power button. From the research I have done over the last couple of day I think I have learned that this unit actually powers up as soon as its plugged into a charger.  So if this is the case, this would be great and awesome for my situation. I would not have to worry about opening up the tablet to solder onto the circuit board to get a external switch somewhere and also have to worry about where to put the switch.  The unit can do this due to it running a rk3066 chip and that is how the motherboards act for this chipset.  

The tablet will now automatically reboot if the battery dies if the car sits too long.  The tablet can be programmed to leave screen on at all times when powered up in the settings and timeout when charger unplugged to set interval times, say for example 1 minute after the power cuts off. 

I am also thinking I could possibly try to rig a switch that triggers a relay to take power off ACC for the tablet when it folds down or gives power to tablet when it folds up, in the factory motorized navigation housing of the IS300.  I will have to put the tablet housing together and see how it moves and where i button could be place to create the function I am looking for.

Tethering from phone also I would like to get it to kick on automatically. Currently I need a Tasker or Profiler on the phone to do the job. I have not found a application that has done it successfully yet without hiccups.  There is two ways to tether data to the tablet from the phone. One will be obviously wifi tether, which I would rather use and has the hiccups currently.  The other is through bluetooth tethering, which is working great but the difference between the two is the transfer rate of bluetooth tethering will not be as fast as wifi.  Advantage of bluetooth tether, less battery usage.

Another thing to look at that I could use to turn tethering on is a NFC sticker,  which would work great but the biggest issue with this is that it will not be fully automated as I would have to place my phone near the NFC,  obviously having to take it out of my pocket to do so.  Would like to devise a system that allows me to do all this without pulling the phone out.