Thanks for your response. We haven't had that issue but we are now getting A LOT of water coming through that back panel. I found another thread where the person had the same problem as I did. Will try to reach out to them.no leakage within the area of my 2009 MDX that you had referenced, however sometimes when I take my X through one of 'touch free' car washes (I never goto soft cloth...hehehe 'SOFT CLOTH' my ARSE!!) the rinse spray pressure will be turned up so high within that particular automated wash that small amounts of water may leak/drip from along sun roof and/or front windows- not a whole lot, but enough to notice...
bminhasI had the same leak but came down otherside (non sub woofer). After ripping everything apart 2 years ago found the leak. Basically the antenna on the roof leeks and let's water into roof line (in my case). It's the small jump on the top roof by tailgate.
To test it remove the water seal in tailgate on body. Run hose water and if you see water building up at metal edge it's the cause. I took clear caulking and sealed it all around. Problem solved. I also removed the channels on roof and caulked the body line in there as well to be safe. You might see rust below the water seal which I would treat as confirmation of the issue.
I would test it quick as there is a fuse box in trunk on left side. One the foam above it gets wet you'll have lots of weird electrical problems. I had to remove it and dry it out.
Let me know if you have any questions.