I had the same problem, then I downloaded the user manual from the Directed Electronics site. It seems with most of the remotes (1400xp included) all you have to do is press the AUX button and then the Lock/Unlock button. This puts it into Silent Mode and no more chirping late at night or early in the morning, but you still have the ability to have it chirp when you need to by only pressing the Lock/Unlock button. Hope that helps.
Answers & Comments
I had the same problem, then I downloaded the user manual from the Directed Electronics site. It seems with most of the remotes (1400xp included) all you have to do is press the AUX button and then the Lock/Unlock button. This puts it into Silent Mode and no more chirping late at night or early in the morning, but you still have the ability to have it chirp when you need to by only pressing the Lock/Unlock button. Hope that helps.