My SC400 has started to act-up lately. First it started with the alarm (factory) going off whenever the doors are opened without the remote (orig key). This past weekend, I noticed when I shut the engine off the dash stayed lit, the auto steering wheel didn't work, and noticed the wipers had power even when the key was out of the ignition. The dash stays on all the time and has drained my battery. I would appreciate if anyone can give me some ideas before I bring it to the dealer.