Solar Battery Charger

[jimbeattie]

I have a BMW Solar Battery Charger ($290 from BMW!!) which the instructions say should be plugged into the "electronic socket". I'm using this in a 2000 X5 4.4.

My question is, where is the electronic socket? Is it the cigarette lighter, which would make sense given it's in the front and this charger lies on the dash (then why wouldn't they say so). Is it the socket in the passenger foot well? I can stand on my head to plug it in I suppose. Is it one of those sockets in the back.

Anyone got any experience of these things and BMW double-speak or do I just plug it into the lighter and see what happens, but then how do I measure what's happening.

[amacman]

is it this
RealOEM.com BMW E53 X5 4.4i Battery charger
the plug on this fits any power point so the ashtray should be good
I had visions of it plugging to diagnostics so I had to look up the part .
says on that link dealer should print instructions from aftersales assistance portal ( ASAP ) .
afaik these should only be connected when engine is off .
unplug charger before starting engine .

[X5 Meister]

Any cigarette lighter socket that is always on. Let us know how it works and if you like it.