Howdy! Just got a new Pioneer700 -4 non Deluxe and noticed lots of rattling on my test drive. Dealer said this was normal on Hondas. Tried to adjust rubber bumper but not much luck. I wrapped the the Metal door latch in 3M Scotch 130C Linerless Rubber Splicing Tape and seemed to fix the issues so far. Added some grease just in case as well. Thought I would share.