It doesn't sound right to me. I don't have that combo, but the Dynon 9 pin network ports are for network only. They are not serial ports. Your serial ports to use are pins 3 & 4 (serial port 1), 5 & 6 (serial 2), 7 & 8 (serial 3), 9 & 10 (serial 4), and 11 & 12 (serial 5) of the DB37 pin connector on the Skyview unit. Usually, serial #5 is used for the Dynon GPS unit. Power for the VAL 2000 should come from a separate source. It is NOT fed from the Skyview system network pins. I use a GNS-430W which feeds info to the Skyview system through an ARINC429 adapter. The SL30 Garmin unit feeds the Skyview as I said above through the serial ports. Don't know where you're located, but the Seattle Avionics data is a real bargain if you wait for the Black Friday sale and buy the lifetime subscription. If you're not US based, then the data is probably not as useful to you as Seattle Avionics doesn't include foreign country data (although it does cover some parts of Canada and the Caribbean). Hope this helps.