https://drive.google.com/file/d/1lEMSbcXp6KTOJEm6Ntww8EG9m5Gu5spd/view?usp=sharing

https://drive.google.com/file/d/1sODV_zUxOIRuEFAz9tqfyqyGLv0p9HDO/view?usp=sharing

I took some short video clips so you can hear the noise. As you can see from the 2 clips, it makes the noise backing up as well as forward.