Whilst installing electric steps, pulled out rubber plugs of the passenger side of the body (RHD) and water poured out. Drivers side was dry. Vehicle has not traversed water crossings - only rain/washing. In the image is a step bolt I've placed in the hole as it helped to wick out the water. Any ideas where this might be entering the body? If I hadn't been installing the steps would have been none the wiser. Call to dealer I suspect.