Here is a link to a couple homemade overhead consoles where members have mounted their radios and more. Bordercollie's is first and and near the end of the thread BCzoom shares one he made. Both look like a good way to add any radio.
We mounted our Radio under the dash, drivers side, on fender. ( hope this makes sense )
in a weather-proof box.
It's out of the way, installation easy access from under the hood.
Worked out perfect for us.
Marine speakers mount in top corners.
That Jensen looks like it would mount anywhere. I'd almost consider getting some velcro and attaching it to the dash or the ROPS.
I read the review(s) on it. They seem mixed and temps and water could cause issues. Myself, I installed a marine stereo unit.
Watch the power consumption of whatever you choose. I found I could kill an OEM battery pretty quickly running the stereo without the RTV running. I fixed that by putting in a deep-cycle marine battery.