The dreaded cupboard

Next time the automation cupboard is going to be big enough to stand and dance in! I think I've mastered the patience to put the RJ plugs onto the cAt 6 cables but its so time consuming - the electrician labelled the rooms by colour tape but not individual identity , so with 5/6 cables per room,without a cable tester it's just plug & see!! So far I have 1 tv and 1 wall control working , - why is the tv and audio colours different for the plugs?