He was probably trying to prevent the MMDC from getting fried if it leaked like wheelerd explained.
Personally I don't like things that don't "work" so 2 dead speedos in the dash would be annoying to me. I'd plug the lines in and give it a shot.
'06 X2 MCX
"I understand why some people may not want to do this the way I have recommended but I can't understand the death grip some people have on a toilet plunger with a hose fitting." -JimN