When I put my Droid Maxx on charging pad it makes the annoying sound unless I get phone in exactly the right position on the pad then it will silence while charging.
Unfortunately, that's normal. You can put the phone in silent mode before you place it on the pad to silence the sound, then turn sound back on. If the sound keeps happening, it may be that you are placing the phone just off the charging "sweet spot". The center for the charger seems to be right behind the Moto logo on the back of the phone. Try placing the phone so that is centered over the center of the charger.
Also, I have noticed a bug with my Tylt Vu charger (which has a three coil design, so is not sensitive to exact placement) in which placing the phone will make the charge animation and sound keep happening until I lift and replace the phone on the charger. I've found that if the screen is powered on when I place it on the charger, this doesn't happen most of the time.
Also. after charging my phone is silenced (no ringtone or notification sounds even though volume is up. I have to turn off phone and restart to get sound to work.) Any ideas?
No idea. That doesn't happen to me.