You're always supposed to connect to battery + (B+) when messing with
amplifiers. Make sure the wire you use is of sufficient gauge or else
you'll see voltage drop at the amp. I'm no expert but I wouldn't go any
thinner than 10ga.
You *MUST* fuse this positive wire as close to the battery terminal as
Connect the negative wire to the closest vehicle ground to avoid ground
All of this information should be in the amplifier's manual.
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