FWIW
Here are a couple of pics of my installation. I mounted the radio closer to the passenger side that way the wife can change stations etc while driving. I do however have a remote for the radio which can be used for the same purpose.
Also, looking again, I remember I did the installation when I had the top of the dash removed and I ran the audio cable from the car mount to the audio input on the back of the Axxerra rather than plugging into the audio jack on the front.
As a note, the mount to the left (first pic) is for my Rand McNally GPS.