Ok, so I am pretty sure I know what the problem is, but wanted a second ( or third ) opinion.

Today, when I was driving home, anytime the RPM's got low,from stopping at a light, or whatever, the CD player, and radar detector would turn off, and wouldn't turn back on until I got the car moving again.

I got to where I was going, and kinda figured when I got back to the car, it wouldn't start. Of course, it didn't. So, I am thinking it's the alternator, am I correct in thinking this?

And if so, does anyone have an extra single cam alternator laying around that I can use for a week or so?