I have an '05 roadster with about 25,000 on it. The siren alarm will go off in the middle of night for no reason I cannot turn it off and just have to wait for the alarm to stop. At times it will reset itself and go for 10 mins at a time. I took to dealer and they kept the car for over a week and of course they could not find anything wrong.

Today the alarm went off 4 times.

Any ideas?

Jim Sawyer