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Originally posted by j's350z for best quality , get it from right behind the head unit with a line level converter....... Its not that hard to pull apart the center console...
I think he means for the on/off of the amp. I ran mine from the head unit. That way it will turn on and off with the head unit. Some people just run it from the fuse box. I think the wire was blue and white. I just tapped it when I installed my alpine.