I've just linked my AV32R and 100x5R together with a cat cable. Everything works fine, except that now, when I adjust the volume, I get a quiet popping from the left channel. When I go into standby, there is a brief hum, also from the left channel as it switches. This doesn't happen when there's no TAG link. Is this normal? Am I better off without the TAG link? Or is something wrong that needs sorting out? Thanks in anticipation.