I know that the manual says that you can only have 5 bluetooth devices registered and if you want more, you will have to delete one and it brings up the deletion screen.

I only have 2 devices registered and I need to delete one of them, but I can not find a way to do it.

Is it possible to do or am I going to have to waste my time and register more devices just to delete this one?

I do not want to do a system restore.

There is no way to delete a phone on this unit. Just pair your third phone and don't bother with the one you no longer use.

Thanks for your help and the quick reply

You can delete a phone by going into the system settings and hitting the "Restore Factory Settings" button at the bottom of the screen. The drawback is thatyou will have to reenter your "Return Home" setting. All of your other settings should be saved.