21 3 Series Best Dashcam?

Hi everyone,

I bought a second hand 21 3 series that was a lease. Almost fully loaded, but unfortunately no 3D camera. In my understanding that is only way to use on board cameras as a dashcam correct? If so, I am looking for a 2 channel (front and back) dashcam that doesn't clutter, can be really seen and allows hardwire but doesn't screw with the battery. Before we go and recommend r/dashcams I already looked and have a few in my cart. Just seeing what actual owners of same vehicle do. Thanks!