This is my setup
Like others I went for the GME ...TX3520 with remote head and with PTT
I know some like to do everything from the mic ... but the PTT is more "legal" than holding a mic and driving ... (same penalty as using a mobile?)
You can see the PTT button is mounted to the console but just double side tape it anywhere comfortable ( it comes with a steering wheel bracked mount too) To use the PTT ... just push and talk (additional mic for PTT is located in front of driver) or you can also use the standard mic which is also attached to the head unit for the passenger to use.
The PTT has two extra buttons ... can be set to ch up or ch down, or scan or prioriy channel.
I also purchased the GMT SPK45B Water Resistant Extension Speaker - this also fits perfectlt in the front console, in that space above the USB ports etc.
I chose two antenna ... a GME AE4013 2.1DBi UHF FLEXIBLE ANTENNA S0239 THREAD 477MHZ ANTENNA WHIP and a GME 477MHz Antenna Fold Down Stainless Steel 6dBi.
The 2.1DBi is great around the city and in the mountains ... the 6DBi is good for the inland roads. They both mount to the same SO239 base so they are easily interchangable. They are both ground independent (don't need to be in the middle of a metal ground (this is important and I would recommendt a GI antenna).
I mounted my antenna to my nudge bar ... the short 2.1 sticks up above the bonnet by about 250mm. The 6DBi can be folded down the run across the bar when not in use
I had to mount the radio under the driver's seat ... way back near the rear footwell because the wiring under the seat can catch on the radio if it is too far forward.
As for wiring ... I tapped into the cigarette lighter using double connectors
To do the wiring and Install you need to take the gear shift knob off, remove that panel, and then the facia around the screen and lastly take the front console out. Sounds difficult ,... just get yourself the plastic panel removal tools and you wont damage the panel edged (if you use a screw driver of a knifer you most certainly will). I used the interior panel removal guide available elsewhere on this site
Anyways ... If you PM me I will do a How To pictorial on the panels, wiring and wire paths.