Apologize in advance if this should be in the gear thread, but was looking for some model specific info so thought this might be a better place.

99 R1100RT

Getting ready to install a Zumo 660 and am looking for suggestions on where to tap in for power. I am indifferent whether it is switched or not; looking for something that is convenient where I don't have to take half the bike apart to get at.

Suggestions on what others have done would be appreciated. Thanks in advance...