Presuming it's never worked RACER38 is the man to ask if if does anything at all with a wrong card, he's got dozens of them. You can't just flick the switch with something and get some life, i.e. the card the wrong way does nothing at all (not even a click) as you describe.
'28 wiring diagrams here, nice one Jamie
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Please do not PM me technical questions, if you can't find it on the Forum start a thread