The only odd thing is when it is working, the unit shows that it is running in battery mode (i.e. It has a battery in the upper right hand corner). I am assuming this would be normal as Ign Sense isn't connected to anything.

The battery icon indicates that the voltage is low. Also, you should connect both the continuous power wire and the ignition sense wire to the power supply. You could also put the ignition sense wire through a pushbutton power switch, that would be cool.

If the battery icon does not disappear after connecting the ignition sense wire, I would suspect your power supply of being inadequate.

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Tony Fabris