[WranglerPrévessin]

You can try to access the fuel door from the inside, by removing the left tail light. To remove the tail light you have to unscrew a large plastic torx screw that is located under the plastic cap near the base of the C pillar.
Alternatively, you could ask a friend to pull the emergency wire while at the same time you open the fuel door with a pry tool or other hook-shaped tool.
Hope it helps, good luck with this.