who says you need it on your dash..... 
Put it on the floor aka MK1 stylee...
ROFLMAO ! Yes, to each his own. But Guessworks kind of made my point. This is all just for show. Put it on the floor Mk1 style and no one would see it. The schematic above bears this out also. You still have to have the ignition key in the lock and turned to the "on" position or you won't have any power to the coil.
On a side note, you guys mentioned the LED tailpipe. Over here there are all kinds of things boy racers put on their street cars, LED tire valve stem caps, LED windshield washer jets, wheel covers called spinners (where the center keeps turning after you pull up to a stop light), rear wings, and tons of silly decals. I prefer my car be a sleeper, one that no one suspects of being able to move and doesn't call attention to itself. Of course... over here, ANY Mini calls attention to itself.