I'd like to install an alarm LED, how do you do this? I have no idea how to hook this up. I have a 12V led with a yellow and red wire from Radio Shack. I had a friend install the alam, but he now lives out of state and I want to install the LED. I didn't have him do it because I was waiting to find out where the LEDs are on factory installed systems. I figured I could get help from someone here on how to hook this up. Thanxs.