Stereo Upgrade - Amp & Sub: SubWoofer Design & Installation

Makes sense. I hadn't considered an Aux in when I saw that connection. Yep, you should be able to run everything from the rear out.

I'm not an expert on the appropriate wire gauge to run, so I'll defer to anyone else with more expertise in that area. This is a source that I used to give me an idea of what I'd need for wire:


I went 1/0 with mine because I knew I was going to run at least 2 decent sized amps, plus it's a lengthy rum from the battery to the amps as well as the fact that you need to pull the ground that entire distance unlike grounding to the frame in a car. I also fused both of my amps at the distribution block with a lower amperage fuse than recommended, in addition to putting a resettable breaker near that battery that's at a lower amperage than what the wire should be able to handle. Probably overkill, but I'd rather trip any of those safeties than have something melt.
 
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