i have blue ridge cable here in pa for my home,i have tv/internet /phone...the house was pre wired for the tv so the lines are in walls for that ,but we had them come install internet and a land line,and it looks like they spilt off the main box outside and droped it in crawl space and then to the 2 boxes in closet to work internet and phone...my question is ,id like to use the line they have in crawl space to wire a tv i have in garage...can i adda splter to this line and hook the gargae tv to it to cet cable tv to the gargae...i think i can but checking before i cut the line..