Just got off the phone with Avmap and here's their lastest:

It will be a separate XM box and antenna that interfaces to the EKP-IV
through the serial port.

The XM box is "small" (no dimensions given) and can be stached anywhere.

No mention of whether the XM box has it's own power cable or gets
it's power from the EKP-IV.

The price will be in the $600 ballpark and available in 6 to 8 weeks
unless something goes wrong in the final testing (TFR data was mentioned
as still being under test) and the building of their special serial
interface cables.

--
Jim Pennino

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