I bought my V7 two years ago. It came with the DST800. And no, it was not listed in the Vulcan. But the unit fired up and found the masthead unit, the DST800 and my AIS on startup. I have two suggestions for you. First, make sure the N2K backbone fires up before you start the MFD. Failing to do this caused a problem on my system once when I started the boat using the house battery. Hard booting the entire system solved this problem. Second, Leave your phone number in the contact form. B&G called me back when I had issues loading my waypoints from the SD card. I was attempting to use a 64GB card in the unit and it only reads up to 32GB. I swapped the data card with the one from my cell phone and everything was great. On both devices.
P.S. Thanks for bringing this up. It caused me to go look at B&G's website and find out about the new map palette and that autorouting is now available in the US. YAY!!