Yeah he has an '02 X5 and the front most cigarette lighter 12v power is actually a cold / switched power. You want to use the T-tap wire and splice into that power lead into the cigarette lighter. THere is our recommended power install. If you are uncomfortable with doing that portion of the install yourself I always recommend taking it to a dealer or a stereo location, as they will know what to do and have it completed within minutes!
-Law