seems like the next logical step is to provide custom options when you have this thing installed.
colors, lights, etc.
we already have the humming sound.
and if you've got colors and lights, you need to be able to see them.
so they need to install a clear acrylic plate on your chest right over the new organ. sort of like the engine bay on some exotic cars.

not only does this allow for easier access, but you'll always be able to see the pulsing and the glow without a shirt or through light/thin clothing.
this would be the ultimate accessory for being seen when you're out, dancing at the club or whatever. it would also be awesome to see during sex