Is that the driver's seat to the right? If so, the area of the wire splice would be to the left of the cabinet. I would check everywhere else before going into the wall, as it was not easy to get into.
Thank you for your reply. It's effectively the driver's seat on the right. I do agree that removing the wall of the kitchen must not be a small task. I'm gonna check if I could possibly try to run a wire from the rear parking light to the back clearance lights harness??