i just recently bought an audi A4 and i was looking around and i found water in the trunk on the passneger side under the stoarge bin! does anyone know where this would come from! in the picture below its under the bin on the far left under the plastic bin! i neeed replays quick because i dont know what to do.... u can seee the water in the picture

 

You'll need a hose to track that down unless you see where its comming from. It does look like a seam leak from the picture. Get some rust cure and spray it to halt the damage already done.