Wow, what a great site. I have a problem I could use some help on. I recently purchased an o3 av and after a month or so, the two back doors failed to unlock by either the unlock switches or the key fob. I now have to unlock them by hand. the "unlock' option on my key fob totally went out at one time, but i used the info off this site to reprogram it. Now, the unlock button on the fob works, but still only for the front doors, not the back. Please help. Thanks in advance.