Sony KV4100

[Arcanine]

Okay, so two things I am confused with on this set. I just picked it up from another member here, and it is in really nice shape, given he got it from a Salvation Army, it's not at all trashed.

I read somewhere that this is supposed to have an FM-Stereo radio, but on headphones it only does mono and it only has one speaker. Is that just misinformation and it is only mono sound entirely?

Two:

It has AV plugs on the back, but there is no switch anywhere on the set. How does it switch to the AV? Just plug in and it switches over automatically?