Hello all, I'm a new owner of a 2005 Xterra. Using the info from this post, I ordered the PAC AAI-NIS adapter. I'm going to use it to listen to my Sirius Starbase and iPod. I have two questions regarding 12v power sources.

Does the PAC unit require its own 12v power source? Is there switched 12v and constant 12v power easily accessible, like from the two dash cigarette lighters?

Thanks.