So I've done the permanent install. Wired the power supply into the bikes switched accessories power via this kit...
Electrical Connection Update Kit
Routed harness to the right side of the bike and installed the power supply there...
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Wiring routed up through the backbone of the frame and out the left side...
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Display mounted. Phone resides in windshield bag with power routed to it from the USB port.
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The red arrow points to a Chargie...
https://chargie.org/
As mentioned before... The Chargie manages battery charging and temperature. AFAIK there are generally two ways to get this kind of control... Software which requires rooting the phone and this hardware approach. The Chargie works pretty well for this task.
Overall I'm pretty pleased with this setup. The phone (battery/heat/cold/elements) won't get stressed and the CP/AA display works great. I've tried an intercom system with it. Everything pairs and works as expected. As discussed before.. Some had mentioned that they don't like that the display unit doesn't have an internal battery to prevent power cycles/reboots when you start the bike etc. This has absolutely not been a problem. The display unit powers up and reconnects to everything within 30 seconds. If you had a Nav session going before shutdown (say stopping for gas), the route/navigation session is still there when the system reboots and reconnects.
The only nit that I've found so far is that the BINIZE unit's firmware version doesn't yet have the Android Auto volume controls. Other "brands" have already provided the firmware update for that. Right now I'm using my iPhone, so it's not a problem. But sooner or later, I'll want to update the firmware.