Are you sure there is no room in your car a custom install can do some pretty impressive stuff
Not my car but a 3 series at amersfoort I would say get in your car and look where you would like your empeg and then go talk to a real good custom install place. Go to a sound off or some where else where people with stupidly expensive installs go to find some one good
The nature of an empeg is you don't need to look at it all the time hit shuffle and off it trots
I don't know what you drive but i bet there is somewhere either under dash or if it is a huge yank tank then maybe you have enough room in the console between seats
Or cheap and chearful solution velcro it to the top of the dash and run the cables out the glovebox