I am connecting a new IKEA pendant light in place of an existing light fitting. I have connected the red wire in the ceiling to the brown 'live' terminal in the IKEA fitting, and the black wire in the ceiling to the blue 'neutral' terminal in the IKEA fitting. However, there is an extra exposed red 'live' wire. Should I connect this to the second available 'live' terminal in the IKEA fitting, or leave it loose as I found it?