What are the dimensions of the MX 11 radio?
Height - 1.6", Width - 6.31", Depth - 11.1" with connectors.
Why do you not offer an 8130 with this and what is the significance of that?
8130-3 forms are for exporting certified units out side of the country. If you are installing this within the USA a 8130-3 is not needed.
Does this unit also replace the Narco MK-12D TSO unit?
Per manufacturer: No, this is not a replacement for the Narco MK-12D.
Are these units (TKM MX-11) new or reconditioned?
Yes the MX 11 we sell are new units.
Is the rack, connector, or install kit available?
The TKM MX-11 is simply a slide in replacement radio and does not come with other hardware.
The TKM MX-11 does not come with a mounting tray, do you sell this hardware separately?
No racks are available for the TKM line. They are slide-in replacements only, not for new install. There are also no connectors included or available.