Hi Folks, Im back again looking for more assistance. This is the e-mail I sent to RDH loking for advice, but sadly no reply. I wonder if you can be of assistance. My motorhome is fitted with a Strikeback alarm system, orginally fitted by yourselves some years ago. It has a bike loom extension which is not working. It was working perfectly well, so I suspect I have done something stupid to compromise it. I recently fitted a new battery to vehicle and was unaware that I should de-activate the system with the overide key. I didn't even know where the key lock was until a couple of days ago and stumbled acros it in the glove compartement. So could failing to overide the system with the key when changing the battery have caused it? I have switched the overide off and on with the key. Should this be done with the loop on or off, or does that not affect it? Anyone got any Idea?