Upgrade head unit & tire rack questions??

Hi folks! I have a 2016 Toyota Prius V, and have two questions.

1) On Clutchfield it looks like there a lot of options to replace the head unit. Ideally I'd like one that has apple carplay, can do wireless and wired connection, and has a volume knob - which may be a tall order. Anyone have any recommendations? It looks like the well-reviewed ones with volume knob would be a much larger 10 inch floating display - has anyone tried this? Does it look silly/make it harder to use temperature settings, etc.? Or do I just need to give up on the volume knob?

2) This summer I need to take 2 trips (7 hours each) with the car that will require a bike rack. I'd like to get a used trunk mount bike rack, as I'll only need to use it twice (in the future I'd invest in a hitch and actual rack, but its too costly for what I need it for right now). On their website, it looks the Saris Bones Ex 2 fits, but not the Bones 2. Unfortunately I also see the Bones 2 available used - so I was wondering if anyone had successfully used it for a Toyota Prius V, or if I need to use the Bones Ex? Or, does anyone have a recommended trunk mount rack?