Power off on GPSlim236

[jimbo_hippo]

In the review for the above I read the following:

"Many current receivers have 'Soft' ON/OFF switches which makes them unsuitable but with the GR236, if it is supplied with an ignition controlled power feed then it will switch ON/OFF with the ignition if its power switch is left ON."

I've played about with the settings and tried SirfDemo settings too but the only way I can see to achieve power off with ignition is to run it without a battery. Is this the case?
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Tom Tom GO 720
Orange M3100, Orange SPV M5000
TomTom Navigator 6, Destinator 6
Holux GPSslim

[Robin2]

Correct
Robin
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TomTom One v3 Europe, Navcore 7.903, Western Europe 835.2420
TomTom Go 720 Europe, Navcore 8.351, Western Europe 855.2884
Satmap Active 10
Plus a lot of other PDA GPS kit, seldom used

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