Put your right foot in, take your right foot out, put your right foot in, and shake it all about! Do the hokey pokey and you turn yourself around! That's what it's all about!
You splice the wire. But make sure you have it wrapped with aluminum foil, that's bolted to your chasis.
No, honestly. Get a power distribution block, for both your power, and ground.. This will split the wire into (as many outputs as the block has). Then just run each one to opposite amps, same with the ground. Also can use one for your remote output, but dont hook up more than 3 amps to your remote out from the deck.