Our house was wired with coaxial cable when it was built, but we've never used it since we moved in as we have Virgin cable TV. I now want to put a TV in the kitchen and use Freeview. The coax all runs back to the loft where there's an aerial, but I've just had a look at it and it's fitted with a pre amp as the picture below. Can you tell me what I need to plug into this to connect the coax cables please?