With lots of regret I'm selling my GNS480. I love the unit, but the bureaucrats in EASA-land can't organise a piss up in a brewery radio frequencies, hence I had to get 8.33kHz kit and went Avidyne IFD.
I doubt anyone would specifically want an MX20 as they're pretty old, but I'll throw it in to make the deal - it has Chartview (and currently EU charts), so maybe handy for someone who wants a spare
All removed serviceable with racks and connectors and a WAAS GPS aerial, looking for USD5500 plus the shipping of your choice.
If no takers here in a week or two, I'll put it up on the GNS480 users mail list
Maybe also a GNS430 (non-W) and GTX330 with racks and connectors - open to offers!