bluebeard21

I have an 89 190e. I bought it without a stereo installed. I'm not a total idiot so I know how to use a multi-meter to find some of the appropriate wires. Speakers, PWR ant, and 12v constant I have found. But I still have a few wires that do not have a home. I have 3 wires that when I test them they are all ground. And I can not find a 12v ACC line either. Could someone help me out with a diagram or anything.