Several people have talked about this before with no clear cut solution. The link below shows a new Kenwood double din dash install that just might fit the bill for those interested (too many $$ for my budget - although if someone wanted to send me money or the unit, I'd do all the test fitting and try it out for a year or two - just to make sure it was OK
).
http://www.streeteffectz.com/kenwoodacuradash/