Solder-less and tool-less electrical system

A method of assembling an electrical device, comprising:

• providing an electrical plug unit having a body with a channel extending transversely through the body from a first pass-through opening to a second pass-through opening at a first longitudinal end of the body, a plug element projecting longitudinally from a central section of the body in a direction opposite from the first longitudinal end of the body, a first conductive contact member positioned within the body and a second conductive contact member positioned within the body insulated from the first conductive contact member, the first contact member having a first piercing member extending longitudinally into the channel and the second contact member having a second piercing member extending longitudinally into the channel, the first and second contact members being in electrical communication with the plug element;
• providing an elongate cable with a first wire and a second wire;
• inserting the cable into the channel with the first wire aligned with the first piercing member and the second wire aligned with the second piercing member, the cable being positioned longitudinally between the first end and the plug element in the central section of the body;
• applying a longitudinal force on (a) the first wire and second wire toward the first piercing member and second piercing member, respectively, or (b) on the first piercing member and second piercing member toward the first wire and second wire, respectively, or (c) both (a) and (b) to affect an electrical connection between the first wire and first contact member and between the second wire and second contact member to the plug element, thereby defining an engaged position of the cable;
• trapping the cable within the housing in the engaged position, wherein
• the cable is disengage-able from the engaged position, and
• the plug element is engageable with a secondary plug or jack to provide an electrical pathway from the cable to the secondary plug or jack.

An electrical unit comprising:

• a body extending longitudinally from a first end to a second end and having a slot that extends transversely relative to the longitudinal direction from a first pass-through opening to a second pass-through opening with a channel extending therebetween;
• a first electrically conductive contact member positioned within at least a portion of the body having a first piercing member extending longitudinally into the channel;
• a second electrically conductive contact member positioned within at least a portion of the body having a second piercing member extending longitudinally into the channel;
• a cap configured to engage with the body at the first longitudinal end;
• a tubular projection extending longitudinally in a direction opposite from the cap, wherein
• the slot is configured to receive an elongate cable having two conductive wires within the channel extending transversely through the first pass-through opening and second pass-through opening with a first section of the cable within the housing defining the first position, whereupon a longitudinal force on the cable causes the first piercing member into conductive contact with the first conductive wire to transmit a first charge through the first contact member to a portion of the tubular projection and causes the second piercing member into conductive contact with the second conductive wire to transmit a second charge through the second contact member to a portion of the tubular projection, and engagement of the cap to the body traps the cable in the first position, wherein the cable is positioned longitudinally between the cap and tubular projection.