What is the minimum audio input cable length for the lifestyle 12 ii. Its currently way too long but according to the manual page 10 its also used as an antenna for the the remote control. My plan was to reduce the cable to approx three feet - will this stop the remote control working. If reducing the length is not recommended then is it acceptable to bundle the cable together and hold in place with a cable tie? ALSO - my intention is to connect a new Sony TV using its optical out. It will connect via an optical to co-ax adapter. Is it correct to assume that the audio input cable is 75ohm as recommended on page 12 of the user manual which states that cables over 2 metres must be.