If you can't find "the knob" pull back the trunk liner on the right side, often easier by starting out by the tail lights. Once you can see the inner fender metal, reach up inside to just behind the area of your gas cover. There you will feel a knob of sorts. The idea is to gently pull towards the back of the car to allow the cover to open.
Often you can just about see it when your head is inside the trunk with your face close to the right hand side.
There are two temp measures:
-You can use an 8mm wrench or socket and remove the vacuum element, pull the vacuum lines off of the lock element and bridge the two tubes with a piece of tubing.
-This isn't so pretty, but you can also bend the lock tab on the gas cover lid. The problem with this is often the pain chips.
I recommend the first.
Keep us posted,
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