A method for combining one of: - a selector/encoder with a single pair of speakers; and - said selector/encoder with at least one of said pair of speakers via a sound distributor; into a sound distribution system of a home automation, said pair of speakers comprising A speaker box and B speaker box, wherein the A speaker box comprises a decoder, a stereo amplifier and an A speaker; said distribution system is adapted for propagating signals selected from a group comprising differential signals of an encoded stereo signal, serial command signals, amplified stereo signals and combinations thereof via a cascading cable selected from a group comprising at least one twisted pair, a CAT5 comprising at least three twisted pairs, a fitted cable comprising at least one twisted pair and combinations thereof; a first segment of said cascading cable connecting said selector/encoder with one of: - said A speaker box; and - said sound distributor; is intersected by a wall socket selected from a group comprising a connector, a pigtail, a fitted pigtail, a junction box, a junction board, a junction strip, a terminal block and combinations thereof, said selector/encoder including input connectors for connecting music sources, select keys a remote control receiver and is powered via a power supply; each of said selector/encoder, said A speaker box and said distributor includes at least one of a differential signal receiver and driver (28, 31) for said propagation of said encoded stereo signal via said cascading cable; each of said A speaker box including said decoder for decoding said stereo signal, said stereo amplifier for amplifying the decoded signal to said A speaker and for feeding B channel signal of the amplified stereo signal to said B speaker box via a subsequent segment of said twisted pair and a CPU for exchanging said serial command signals via one of said at least one twisted pair multiplexed with said encoded stereo signal and through a third twisted pair of said CAT5 with one of said selector/encoder direct and with said selector/encoder via said distributor, said method comprising the steps of: a. interconnecting a twisted pair of said subsequent segment of said cascading cable between said A and B speaker boxes for feeding B channel of said amplified stereo signals to said B speaker box; b. connecting at least one music source via a stereo cables to said audio connectors; c. exchanging said serial command signals between said selector/encoder and said decoder via at least one of said third twisted pair of said CAT5 and said multiplexed serial command signal via said one twisted pair; d. operating said sound distribution system via said keys or via a remote control associated with said selector/encoder; wherein the method is characterized by the steps of: e. interconnecting said selector/encoder to said A speaker box via one of: - said cable direct; and - via said sound distributor; for feeding said encoded stereo signal to said decoder; f. connecting said selector/encoder to said power supply for powering said sound distribution system including said A speaker box by a feed selected from a group comprising a constant current via said one twisted pair, a DC power via a second twisted pair of said CAT5, said constant current via said one twisted pair cascading through said sound distributor, and said DC power via said second twisted pair cascading through said sound distributor. - a selector/encoder with a single pair of speakers; and - said selector/encoder with at least one of said pair of speakers via a sound distributor; - said A speaker box; and - said sound distributor; a. interconnecting a twisted pair of said subsequent segment of said cascading cable between said A and B speaker boxes for feeding B channel of said amplified stereo signals to said B speaker box; b. connecting at least one music source via a stereo cables to said audio connectors; c. exchanging said serial command signals between said selector/encoder and said decoder via at least one of said third twisted pair of said CAT5 and said multiplexed serial command signal via said one twisted pair; d. operating said sound distribution system via said keys or via a remote control associated with said selector/encoder; wherein the method is characterized by the steps of: e. interconnecting said selector/encoder to said A speaker box via one of: - said cable direct; and - via said sound distributor; for feeding said encoded stereo signal to said decoder; - said cable direct; and - via said sound distributor; f. connecting said selector/encoder to said power supply for powering said sound distribution system including said A speaker box by a feed selected from a group comprising a constant current via said one twisted pair, a DC power via a second twisted pair of said CAT5, said constant current via said one twisted pair cascading through said sound distributor, and said DC power via said second twisted pair cascading through said sound distributor.