Hooking Up A Scanner??

I have a scanner that I would like to hook up for my car, but what do I run the wires to?

If you have an alarm, you could hook it up to that. I just hooked one wire to power, one to ground and the acc. wire to the LED output for the existing Alarm. I'm not sure when you would want the scanner to come on (switch, lock doors, car off, remote). Hope this helps.