Ian,
To be able to reach the clip/connector for the left side globe, stand on the left side of the bike while facing the back of the bike. Turn the bars to make some room, and while facing the back of the bike, reach in with your left hand. This means you're working blind, but should be able to feel it quite well. Same procedure for the right side, except reach in with your right hand while on the right side of the bike and facing towards the back of the bike.
Pete