One of the most difficult aspects of installing a home theatre system is running speaker wire to the rear speakers. Exposed wires can be unsightly, and concealing wires can be difficult, time-consuming and expensive. One option that is often overlooked is a "wireless" run, which can be done with the right equipment. While this won't completely eliminate wires, it will certainly eliminate those long front-to-rear wires.
Purchase a wireless speaker kit. The kit will allow you to transmit your audio signal via radio waves from your stereo receiver or amplifier to your speakers. Some common options include the Rocketfish Universal Wireless Rear Speaker Kit and the KEF Universal Wireless System.
Connect the transmitter to your stereo amplifier or receiver. Wireless conversion systems vary as to how this is done. Read your instructions or check the hardware to determine which method will work with your kit.
Connect the transmitter using the speaker-level connections. Shut your amplifier off and run speaker cable from the rear left and rear right outputs on your amplifier (or whichever speakers are being converted) to the corresponding inputs on your transmitter. Be sure that the positive and negative terminals are correctly aligned. Strip about 3/4-inch of cable and insert into each terminal.
Connect the wireless receiver. Run speaker cable from the left speaker output on the wireless receiver to your left speaker. Strip about 3/4-inch of cable and run positive to positive and negative to negative. Repeat for second speaker. Some systems use one receiver per speaker; hook them up separately.
Plug in your transmitter and receiver(s) and turn your stereo system on. Allow the transmitter and receiver(s) to locate each other and test out your wireless speakers.
Wireless systems will likely result in decreased sound quality.