I'm installing a flat screen in a bathroom behind 2-way mirror glass. Since it is essentially in the wall, I will be using a model that is a monitor - no speakers - and mounting some ceiling speakers for the sound. I'm looking for an amp that can be mounted inside or on the surface of a wall that will automatically turn on when a signal comes into it and drive 2 speakers. 50 - 100 Watts would be fine as this is just a simple application in a bathroom. Any suggestions? Thanks!