On the smart pad I have a un-used "12V" accessory switch. I installed an underwater LED and I wanted to hook into this 12V switched wire. I can't find where it comes out where I can use it. I removed the breaker switches and tried to follow it out, but it is quite tight down there. I believe it is marked as "accy" when the wire leaves the breaker, because I cant find one labeled "12v" anywhere. This is on a 2007 220, but I believe it should be the same on any year or model that has the 12v marked on the smart pod. thanks...