Complex sentence: Modchips typically require some degree of technical acumen to install since they must be connected to a console's circuitry, most commonly by soldering wires to select traces or chip legs on a system's circuit board.
Split into simpler sentences: Modchips typically require some degree of technical acumen to install. Modchips must be connected to a console's circuitry, most commonly by soldering wires to select traces or chip legs on a system's circuit board.