I used the Hidden Stereo a couple of the vendors, the only exposed piece is the small control head. My antenna is even hidden it runs under the bed.
https://www.flickr.com/photos/advance-design_parts_co/8129072768/in/album-72157631867396207/
https://www.flickr.com/photos/advance-design_parts_co/18149693683/in/album-72157631867396207/
https://www.flickr.com/photos/advance-design_parts_co/50023678297/in/album-72157631868452754/
Speakers are behind original speaker grill (also a vendor item), they actually attach to the original block-off knobs and have good sound quality.