Just got Home after three months away. I tried to start the car but the battery was flat. So got access to the fuse panel to open the front bonnet to get the battery out for charging, however as soon as I put a secondary battery on the car the alarm goes off.
Putting the key in the ignition I get no power to the dash or Windows etc.
Probably doesn't help that the only key I have here has knackered remote function. Any thoughts?