I'm finally done hooking up my Nokia 5190 to my car, so now I have speakerphone in the car, and it didn't cost me a dime I just hacked the little mic/earpiece thingy that comes with the cell phone, spliced it to RCAs -> aux input, and it's all set and sounds. The only problem is that I can't figure out how to get a mute signal sent to the empeg, but that's no big deal, because I'll simply hijack the knob press to switch between aux and mp3. I'll have to hit one more button when I make a call, but no big deal.

I'm happy... gonna go play with it some more...