SOLVED factory USB functionality with aftermarket radios

Hello! This overcomplicated posting is addressed to those of you who have purchased an aftermarket radio and have been hit with severe disappointment that your nice factory USB cable no longer works! The good news is that I have located, purchased, and tested an adaptor which gives you back USB functionality to the full extent of your aftermarket headunit (USB 2.0, of course). I will provide the easy steps I followed for installing this adaptor and PROOF that it does work as expected

Requirements:

• A headunit with a female USB-A plug leading to the empty space behind the radio.
• The product I have linked just below
• About 10 minutes (give or take) of your time.

HERE is the amazon link to the product I am using. Relatively fast shipping and cheap compared to alternative AliExpress adaptors. More importantly, it works! Way better than custom making a harness like I almost planned to do. Finding a functional adaptor was a real PITA for a while because I looked for Honda USB adaptors. No. The USB is by Mitsubishi.

It begins:

• Remove your aftermarket headunit in order to gain access to the "H-Type USB adaptor unit" made by Mitsubishi.
• Locate the USB box where the factory USB harness currently leads to. It is technically 'below' the radio unit back towards the passenger side. There are two cables plugged into it.
• Do whatever you must to be able to have enough space to reach your hand and / or a tool into the now open space. Go ahead, unplug your headunit to make it easier on yourself.
• In order to access the USB harness you must first remove the cable with the white plug - the release tab is facing down. It's hard to reach, but the USB plug will be harder so get some sort of a small 90 degree tool you can utilize to push the release. I have small fingers and yet it was angled just right to make it incredibly difficult without a tool.
• You should see now a gray plug closer to the back. Use your trusty angled tool and carefully depress the release. This release will also be facing downwards.

You're already 50% of the way there - now you can simply take your USB adaptor and insert the gray plug depicted in the image below. Sensitive content: NAKED PLUGS
(I didn't choose to censor, trust me)

Now that you have the adaptor plugged in to the USB harness, go ahead and re-insert the white plug into the USB box. It will likely make no difference if - like me - your headunit doesn't make use of that USB box anyway. Just plug it back in to be safe
(Edit: The white plug I am 99% certain is just used for the AUX. There are aux plugs out there that use that exact format so it's fair to assume that's the case.)

At this point, if you unplugged your headunit you may plug it back in. Don't forget to plug that USB-A cable into your headunit. I personally have a Teyes CC3 (lovely unit, lots of things to meddle with) so I am going to simply plug the adaptor into my individual USB cable from the back of my HU. You may now safely tuck your rat's nest away and fasten your headunit to the dash.

Go ahead now and start your car or turn your key into accessory mode.
If your unit is as simple as mine - you will have a fully functioning factory USB leading to your headunit! Congrats!
Depicted below is proof of power and storage drive access via the factory USB. Disregard my grubby fingerprints.

Now you can tuck away your USB accessories! I personally had my USB running through the latch hole for the top dashboard storage compartment which was annoying because it couldn't stay flush to the dash. I make use of the reverse-cam recording so I definitely needed this plugged in and tucked away safely when driving.

Questions? I would be glad to answer any or be of assistance with any troubles you run into.