I use mine for the battery maintainer. I took the wife's X5 glovebox 12V plug and insert it in the lighter hole when out of the garage.
The BMW plug does not match the switches, but is very close to the matt black horse collar.
Oh yeah. WELCOME!!! 
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Mike
04 Boxster S - Basalt/Savanna, 6sp, Carrera lites, hardtop
70 914-6 - Black over tan, original/stock
PCA since 1970
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