I had a Phatbox in my VW. It was wrecked and I purchased a Volvo, changed the firmware, and the phatbox has been working great for 5 years. The other day it stopped working. I had power and ground to the harness, but didn't see any power lights so I bought a new Phatbox head unit from Ebay. Now the green and red lights illuminate (although they may have illuminated on the old unit and I jumped to a conclusion), although the green only briefly and then only the red stays on. it has good power and ground, but the radio head unit no longer shows a CD changer is connected. The DMS will work on the PC in the cradle, and I unzipped the Volvo firmware to the PHTSYS again, but to no avail. The DMS Doctor says it has a System File failure: "Could not find system file G:\<!DOCTYPE HTML PUBLIC"- Anyone have any ideas?