(Disclosure, I may receive a small referral fee when you make a purchase through this links on this post.)
I completely forgot about the HDMI extender which came with the Amazon Fire TV Stick when I was making this video last night. It was late and I was a bit tired but this extender has resolved my issue of not being able to access the USB port on the Amazon Fire TV Stick. I made a video and have uploaded it to youtube detailing how to use the HDMI connector. It worked like a champ. For aesthetic reasons, you may want to use zip ties to hide the TV stick and the USB cables.