So, the need: A way to open the fuel door or right glove box quickly
What you will need: Inexpensive key that works on your bike, a radio knob that matches your radio.
Step 1) Put the key in the fuel door as far as it will go, mark the key at the top of the lock.
Step 2) Remove key from lock, measure the depth from the bottom of the knob to the top on the inside.
Step 3) Add that measure meant to the height marked on the key. Cut key just slightly above that length, like 1/16". Discard the non key part.
Step 4) Hold the un cut end of the key with a vise grip and heat the cut end with a torch or the gas range. Electric range might work, but, you may leave plastic on the burner. When the key is hot, push it into the round part of the knob that would normally hold the knob on the radio. Be careful to not go through the top of the knob. This will result in a slot in the round part. Some guys super glue it in, but, I've found that will fail.
Step 5) Put the key and knob, with the knob down on a piece of cardboard. Fill the void of the knob with JB Weld. If you fill it too much, don't worry, it will file flush. Any splatter on the key can be removed with a knife (watch your fingers).
Step 6) When the JB Weld is cured, carefully file the excess JB Weld smooth. Doesn't have to be pretty, it doesn't show. And, the lock has a depressed area.
Voila, you should end up with something that looks like this.
This "key" will open the glove box and fuel door, but, even if you leave it in the fuel door and someone takes it out, removes the knob and JB Weld, it will not start the bike. Having said that, they could use a Gold Wing blank and copy the bottom part and it might work, I've never tried that. My advice, lock it in the trunk when stopping overnight.