Didn’t have to.
I followed
@Loc Nar process mostly. In his install, he used velcro, but I used VHB instead because I didn’t have velcro

.
With that, to preserve the paint, I applied some scrap vinyl wrap first and then the camera w/ VHB direct mounted w/o the adjustable mounting bracket. There is enough vertical adjustment in the camera settings that the bracket isn’t needed….at least it appeared that way when I test fit it last night

The only obvious downside is that the plug is too big to fit in the panel gaps, so it remains visible. I applied tape/heat shrink to the connection to protect it. I’ll revisit wire routing after I install a roof rack in the future.