I am trying to wire a dash cam into my 2010 Freelander 2 (UK model). The kit I am using requires that I tap into a switched power source in the passenger bay fuse box using a fuse tap cable. When I use the cable I discover that all fuses are live even with the ignition switched off. I am using fuses such as tail gate wiper, windscreen washer, and others that should only be live when the ignition is on. Can you suggest what I am doing wrong.