My 2005 Volkswagen Passat recently gave up the ghost with only 307,000 miles on it.
Before it was towed to the junkyard, I removed the Phatnoise unit that gave me many miles of listening pleasure.
The complete kit is for sale, currently listed on EBay:
http://www.ebay.com/itm/Phatnoise-Phatbox-for-Volkswagen-Audi-/332382664197?hash=item4d638cf605:g:B9wAAOSw9DVZsMYc&vxp=mtr
I still have the box and packing it came in to ship with!
Greg L.