Hello! I am looking for a cheap (if it exists) stereo/receiver that has a detachable face plate which can be mounted in a wall. It just needs 2 or 4 audio inputs and the ability to power 4 speakers. Can anyone recommend a unit?

Thanks!
Bill

what are you doing mounting it in a van?

Haha, no van. It is for a conference room, I want it to be set up with no boxes laying around. I was looking at the Sonos but it is a bit overkill.