tbh i dont know why u'd wanna get rid of the "beep" i think its pretty cool, when you get out your car and start to walk away and click the button to make it beep lol

 

You can always leave the hatch ajar. The doors will lock with no noise or blinker flash...but ya still have the hatch unlocked

I found this out the hard way when I accidentally hit the trunk button from a distance before locking. It still LOOKED closed, so for a bit I thought my alarm just wasn't going to work anymore.