I assume your screen only have 1 AV input so you can only connect 1 thing to it unless you use some form of switch to thange input signal.
I allso dont think the menus in the camera is viewable on the AV out signal, i only think they are visible on the camera screen ( if it have one )
The Jovuu X cameras i am testing on all have to be setup via a WIFI and a APP ( android or ios ) but they allso have a PC program that can do it.
And in the app you allso have a preview steam for setting up the camera, but this is allso a low resolytion steam, and since the x cam is based on the A7 chipset this means the steam is dalayed with some seconds.
The mobius can only be setup connected to a PC using a little GUI program, but thats not really a problem as you only need to set it up one time, and then maybe tweak it a little after you have previewed some footage and found the camera is a little off.
I dont have any probelms eyeballing non screen cameras, they after all have wide angle lenses, so not capturing most you want will need you to be at least blind.
Offcourse i am anal too so after discovering the camera is a fjew degres off, then i just give it a little twist the next time i go driving.
I am not quite sure about the screen and legallety here in Denmark at least, you are okay to have a NAV unit and phone running, but you are not allower to have a movie running on the screen of your headunit while driving.
This means i am proberly allso not allowed to have a movie running on the 7" tablet i use for NAV and at times allso the delayed preview steam of a X camera.
But in this understaffed country ( in regard to police ) i take my chances, i shouldent do so i know, but i never claimed to be a 100% standup guy, with my history i am a little soiled around the edges, but still okay to have in your house even with all your savings spread out over the dinner table.
The major issue i have with this 4 X 1 camera setup is i have to go to each camera if i want footage off them, and since they all use the damn small micro SD cards i cant be botheres with messing with those in my car, so i have the cameras installed so i can grab the whole camera and take it with me.
For that i use DIY mounts made with neodynium magnets and a little sheet metal bend in shape to space things out if needed.
Offcourse my main front camera the SG9665GC i have to take out the small SD card, it is detachable too on its quick release mount, but i can deal with that 1 camera, just have to make sure the car door is closed so i dont launch the little SD card out of it again.
The best bang for the buck and allso smallest foorprint is the little Mobius cameras, the only minus with them is they have a lipo battery as they are allso small action cameras, but if you are in a hotter part of the US you can get capasitors to replace the battery, i have done so with my mobius, cuz on the good summer days we can reach +30 deg C here, and in a good summer we can have like 2 - 3 weeks of that ( for the most spread out over the whole summer )
The mobius cameras is well proven over the years they been out, this allso mean they are not the best low light performers, but even compared to the best of those they are still so good the difference dont really matter.
Cuz best night performer ( the Sony IMX322 sensor ) still isent so good that you wont see a lot of motion blue and have to drive really damn slow to get a fairly crisp night footage.
Thats just the way things are now with the tech thats there for dashcam makera to use.
So driving thru a lit town at night a side mounted mobius will only capture a lot of motion blur while you are driving, but as soon as you are stopped things not moving much will be crisp, even a car passing you slowly while you are at speed will be good too.
Just dont expect to capture any licenceplates at night or at speed even on those dark grey days, current dashcam sensors simply are not good enuff for that yet.
I will grab some night footage off my mobius for you a little later when i go for a drive, then you can see for yourself.
In regard to daytime, then the mobius is perfect, with 80 km/h highway speeds here ( think thats the same as your guys 55 MPH ) the moobius will for the most get a good capture of the car going the other way at the same speed, even if its only in frame for 3-4-5 frames as it rush buy a fjew feet avay.
This pic is grabbed off some footage from the mobius, and the light was not perfect that day, but okay for a good capture.
Actually i dont know why its so good, cuz there wasent that much light that day as you can see in the pic.
This is a picture from mobius footage in the windscreen, driving on a lit road ( not lit up like some US roads and towns can be )
you can still see stuff allright but as you can see when dashcams use the slow night time exposure timings then the crispness of the pictures go out the window.
I will have some daytime and night time video footag for you later.
Do you prefer to Dl the raw material ( 3 minute /350 MB files ) or is it okay with the lesser qualety of youtube ?
Either way is allright with me as i am on a high speed cable sonnection, so uploading a fjew Gigabytes is no problem at all.
The mobius cameras dont have a dedicated AV out plug, bus as they are used for FPV flying with quadcopters and RC planes they have AV out via the mini USB plug, but then you have to get a wire harness to use that.
