trust me when i say that their should not be lights in your airvents. can you take a picture or something? sounds like whoever owned it before you was getting creative or something.
Its not hard to do. I use to and on occasion still do custom led work for people. Air vents are actually quite popular. Most common are blue or red. If yours stay on it means they were wired to a constant power supply.
Last edited by Bobtail_Bimmer; 06-13-2012 at 05:50 PM.
Lights inside airvent. 
.......It just sounds funny!
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