I have just bought a multiroom box and am awating my second viewing card arriving before I can watch it. However, the Sky engineer said that I need to connect this box to my phone line. Is this correct? My original box is not connected either. Do I need to connect this one also? Can I connect both wirelessly? Lastly, the muppet who installed my second box used black wiring in my ever so white kitchen. Is there any way to disguise the black cables with the exception of tippex?