Thought I'd post some pics from my install -- bought the screen and two cameras, and started with one aiming back on the ROPS. My real goal is to have a front camera on the bucket or loader frame, but that is more complex so I am still working out details. Started with the rear mount as practice.
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I used 3M gray tape to mount camera to underside of ROPS, using hairdryer to warm up all surfaces before attaching for better results. Used a combination of split loom tubing and flexible braided wire wrap to run wiring. The braided stuff is good for places like a ROPS hinge or front loader pin where the cable needs to flex.
Screen was mounted above my loader joystick with a custom bracket, and it's a great location. There is a lot of vibration at idle, but it's smooth at higher RPMs. I may see if I can augment the support a little to keep the screen more stable at idle, but that may be a lost cause on a tractor (I rarely would be operating at idle and looking at screen anyhow).
Was going to get a camera without lines, but didn't want to spend more. I noticed that the cameras I got have a different gridline style than shown in the first post here, even though it seems to be the same product from Amazon. Must be typical Chinese parts swapping.
For switched 12V, I added another connector to the accessory lug on the ignition key, as that was the cleanest way I could see doing it on my
L3200. Used the same gauge wiring as other wires on the switch, so that run of wiring will be protected by the key switch fuse. Downstream, I added fuse holders for the cameras and the screen already came with one.
Wasn't sure where to stuff all the various wiring, but while looking for a place to mount a plastic electrical box, I found the perfect spot for the wiring that doesn't need a box -- inside the cross tube for the front loader mount frame. It's in a good location to route all wires from behind, and has plenty of room. I will rig up some sort of cap/plug to cover the open end.
Still working out where to put the front camera, but it would have to be on part of the loader frame or bucket to be the most usable for loader work (which often has the bucket raised above hood level when I need to see something). Was thinking about a vertical post mounted to the front loader cross member, but it would need to be 12-16" tall at least, and I worry that vibration would have a camera on the end of a stick shaking around too much. Plus it would rarely be at the right angle. So now I am thinking of making a little armored box just behind the top bucket lip, and put the camera there. It would keep firewood and other stuff from bouncing directly onto the camera, and I could add a little piece of plexiglass to the front to keep dirt and materials from spilling in. Any other ideas are welcome!
Thanks to the OP for posting this info. For the price, can't be beat, even if it gets trashed after a while. Being an open station tractor that is stored indoors, I am not too worried about the screen. I'll keep a ziplock back in my toolbox and throw that over the screen if I have to operate in the rain.