If you figure it out let me know. I've been trying for years. 34's with trunk have a rail running across trunk with holes to let it drain but with rumble seat it interfers with lid when opening. I saw one years ago with plastic tubes attached at end of gutters and snaked around to a couple holes in floor, don't know if it worked. I got cought once in the 55 years I've had mine and had to dry out the rug with a hair drier. Be very interested if you come up with a scheme.