Nixie Tube VU Meter for Fiat 500 GPS Dock

The 2013 (and later?) Fiat 500's have a docking port in the dash for a TomTom GPS unit. I have had my eye on this docking port for some time, with the idea of making my own *something* to dock in there. Well, the day has finally arrived.

I purchased a 6E2 Nixie Tube VU Meter from eBay (http://r.ebay.com/CzhFCB), and designed a functional docking port and case for it.

Video of the board in operation is here: https://goo.gl/photos/i6NbzwVF3RGAupBG9

It is possible to print the entire d