mod for USB rear entry
I'd put the flash upgrades way ahead of where a connector was mounted.
Without the expected updates to the operation, the USB drive wouldn't really meet my needs.
HOWEVER, given that the upgrades seem to be on the way, here's how I'd handle the USB port.
...if it really bothered me... and it might:
To avoid defacing the rear panel of some of my other equipment, I've found it possible to drop flat cables out through existing bottom vent holes.
They were then terminated with RJ45 connectors and rubber snag-boots.
Without having one of these receivers at hand, one can only speculate, but...
I suspect a 5' or 6' commercial USB cable (from the 99¢ store) could be cut in half.
The bare end could be snaked through bottom a vent hole near the front of the receiver.
Secure the cable with a nylon tie-wrap through holes toward the rear of the unit.
Inside, there might be an un-mounted rear USB connector location on the printed circuit board.
There might be a test header on the board, or pads for one.
As a last resort, I'd strip the cable and tack solder the connections to the bottom of the PC board at the front USB connector.
The above description is not meant to be a step-by-step procedure.
It's just a suggestion for someone who has years of experience with electronics.
Such modifications to new equipment will render the warranty null and void.
Your mileage may vary.
Proceed at your own risk.
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