Audi B7 RS4 Fuel Door Hack - No More Stuck Door!

We had a short circuit to the fuel door switch on this B7 RS4. The short is between the comfort module and driver door module. To properly find this gremlin, we'd have to disassemble quite a bit of the interior up front. The car needed to be on the road the same day - and without having to go to the trunk every time to manually release the fuel door.
We wired in a push switch to temporarily reverse the polarity to the fuel door actuator - hooked up to a 12V ignition, so the button will only work when the ignition is switched on. Routed everything neatly - and placed in right under the steering wheel. Problem solved!
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