My 2010 Tacoma has a 2 inch square in the rear view mirror that works wonderfully.

I actually like that a lot. Does the job without providing a (practical) target for infotainment. TIL.

You piqued my interest. What is the alternative output for a camera without a screen?

These days I guess we could do gpt with voice out to recite a poem about the kid you're about to hit?

Haha... I think gp meant touch-screen, but thanks for the chuckle :)

My old F150 had a screen in the rear view mirror. I miss that.

My SO's Buick Enclave has a screen behind the rearview mirror that can be set to show the backup camera. Works okay, but I prefer the actual mirror and just use the dash display. That said, vision issues, so not driving since around this time last year.