Mounting two-way radio under rear-view mirror?

I currently have my CB mounted on the passenger side of the center console, right around the thigh area. This has presented two problems that are making me consider moving it, namely that the sun reflects off of the screen making it unreadable at sometimes of the day, and the unfortunate positioning of the mic connector, which is on the lower right of the radio, and so in a position to get bashed easily. Nothing bad has happened to the connector yet. Yet being the operative word here.

I'm debating mounting directly under the rear-view mirror. Obviously this would require fabricating a custom bracket, but I think it would solve my two problems. Anyone have thoughts/suggestions?

The extension you see is partly to avoid having the microphone cable sticking straight up (which reduces bash a lot), but also adapts my 4-pin microphone (Ranger SRA-198) to my 6-pin radio.

Here is the radio in it's current position:

And here is where I'm thinking of placing it. I may place a reflective shield on the back just so it isn't exposed to full-strength sunlight, even though it will be mostly in the shade of the camera shroud.

 

Definitely an interesting design, though as high up on the dash as it would need to be mounted in the Prius so as not to obstruct the MFD's, I find objects in that location distracting, especially when I'm wiping the nose of the car across a wall in tight locations.

 

I thought about that, then came up for air when my Crutchfield shopping cart started resembling a used car price.

Because you can't just replace the H/U, of course the speakers aren't audiophile quality, and of course the H/U alone isn't enough to drive the new speakers, so a 4-channel amp is needed, and naturally one is going to get the subwoofers too...

 

And here I thought my avatar gave away my disregard for the state.

I did mention the heat concern, I was thinking a piece of reflective material. The largest part of the radio would already be shielded by the forward camera cover anyway. Beyond that, radios generally like to run hot, or at least the crystals do.

I already tore the headliner out once to get the antenna installed, and I'm going to be ripping it back out again before too long to replace it, so ehh...

As to the styrofoam block, well, in it's current position the radio has ZERO motion. It's up against the center console at the face, (the face is nearly flush with the top of the console), and the connector side is against the carpet beneath it.

 

Ehh, I'm going to have to do up a completely different mount, which is going to require structural reinforcement to the roof. Going from ~60" to 108 inches may only be an increase of 80%, but the torque forces on the roof are going to be PHENOMENAL.

I originally installed a Wilson 1000 roof mount, and I'm upgrading to a 102" whip, to perfect that RC car vibe. Well, that and the base of the Wilson has cracked, so, it's on borrowed time.

 

I get the feeling it will be... an electrifying experience.

And I've been to the odd place where the 9-10 foot height I have now has touched power lines...

If it's any consolation, I am planning on using one of these to be able to enter parking garages.