Factory disarm is a light green wire accessible in the driver'* door jamb boot and the dome light wire is the white wire that is used for the hush panel light. If this is also an alarm and you have illuminated entry (dome lights turn on when you lift the outside door handles), then you should connect the dome light wire to the door switch. I'd have to check on the color but you can get to it in the door jamb boot too.

Thanks for the quick answer I go try out right now.
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