You have to use a flash drive. The advantage is that you only have to bring the flash drive out to your car to update, instead of a laptop, USB-Serial cable, etc. Makes updating easier, though not quite as real-time, since you have to do your settings/firmware on a computer, then copy to a flash drive and bring out to the car.
Also, if you use the USB extender that comes with the ALP, and have the port in an accessible spot, you can bury the CPU in the dash and you don't have to pull things apart to get at it to do updates.
Hopefully down the road the Bluetooth app will give you all that capability within the car, no computer or flash drive required.
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