I bought a 2019 M3 with FSD. Right now, I am in between model 3's and am contemplating FSD or not for the next one. The main feature I enjoyed that is part of the FSD package is the automatic lane changes. My question is this - if I have standard autopilot and AutoSteer is engaged while on the interstate/ Highway and I want to make a lane change - how does it work? Do I have to effectively disengage Autosteer and reengage after my lane change is complete or does using the signal before/during the lane change allow auto steer to re-engage when you are done with the lane change? Does it bong sound happen every time you change lanes?