I went for gas today and wasn’t able to open the fuel filler door. Luckily I was able to make it home. I have looked in the trunk for the emergency release and couldn’t locate it. I ended up finding the green knob with the fuel door symbol and it wasn’t connected to anything. Can anyone tell me where it should be connected? Above the loose green knob in the picture is a black plastic round piece, would anyone know what that is for? I gave it a pull and it connects to a cord. I tried the fuel door while pulling on the black circular piece and no luck yet. I am hesitant to pull too hard not knowing if it is the right cord to release the fuel door

