to me it looks like the distrubetor thing that connects to one while from the battery to the amp think if i remember there called splitters. you know wat im talking bout? have you disconnected it yet. if u have is it still drawing your battery empty cos if it is would think that its not that doing it
yes it was never in my car but thort maby it needs to be so it dosent drain power i just thort it might have somthing todo with my cap cos it has the same littel sticker on it
thats is a noise suppressor, it filters noise caused by the alternator. ive seen them all over ebay. after the fuse to your amp you connect the single red wire. then continue the positive to the amp, blue just bolts to the closest earth.
Edit: (should have read 2 posts above before i posted, oops)