I own a 2013 RV-12 which I did not build. I want to replace the auxiliary fuel pump. My A&P mechanic who is not familiar with this make and model said he believes we have to remove the wing to access the fuel pump. I believe he is incorrect. I believe the fuel pump can be accessed by removing the rear bulkhead. Can anyone provide me first hand knowledge on the best way to access and replace the pump. Thank you.