This may be a dumb question, but my new 22 is the first vehicle I've owned with hands free entry/exit. when you exit the truck and want to lock it behind you, Is there any difference between pressing the lock button on the inside armrest vs the lock button on the outside door handle? When you press the one on the outside handle (or the keyfob), the truck honks the horn. When you press the lock button on the inside, it does not. Just curious if there's any actual difference besides sounding the horn.