How much for the device, if anyone can do it, and how many sound options?
V8, tank treads, Jetsons, ice cream truck, flying saucer, phaser, cows mooing, ducks, Godzilla, crowds running from Godzilla, the Monty Python theme, foghorns, etc, etc.
Maybe custom download sounds like ringtones.
Sounds for any occasion.
'12 SL last reading @ 2 yr, 22k, 260 GIDs, 62.35 Ahr
'15 SV w/QC, Mfd 5/14, Leased 8/14, 292 GIDs, 64.38 Ahr when new
@ 36 months, 34k, 270 GID, 57.49 Ahr
'17 Bolt LT
6.72 kW Array