Hi could someone please help me out...I've recently bought the sony htsl500 home cinema system... I need longer speaker cable than they provide....it's 22awg and the wire seems to be silver in colour...? I also need a 24ft phono cable for the sub. Can anyone please tell me where I can get them from...? (I'm assuming it's safe to have a longer cable...at the same thickness)...I need it to be thin to tuck down the skirting board. Thanks.