Mark,
You are correct but you need two push buttons, by using the one I suggested you only need one switch. Press once to set, press again to release.
The push button that I used was like this:-
http://www.maplin.co.uk/p/230vac-3a-...h-switch-n26ka
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Ray at Wigan Pier
2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore..
In progress, Nothing left to do.
Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter)
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