Hi we have just picked up our new motorhome a Challenger (Chausson)Sirius however the dealer that we picked it up from dos t know how to set the alarm at night when we are in bed, there are two senses on the dash, the fob has 4 buttons, arm, disarm,panic and not sure what the other one is, have tried all ways but without success I think the alarm is a Gemini 931T MH.Many Thanks
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