Routed and dressed the wires to the master solenoid. Red wire goes to master switch, and when turned on powers up this relay, and sends current to the peg on the right. Right now that peg only has the 10 AWG wire that carries power back to the main power bus, but the 4 AWG starter power wire will eventually attach here. The left peg is always 'hot' and that 10 AWG wire feeds the 'always hot' battery bus. The positive side of the battery will also connect here eventually.
