I tested these maps yesterday in 34xx and in 1200 with a route in New york and in Atlanta and it worked, anyway now I made a test in my 34xx, with small NA CX coz I left loaded full CNA 2013.10 in it -
In simulation , in Miami, asking for a pedestrian route with public transports.

VxWST

IMHO it works.

Edit:
Tested full NA CX in my Nuvi again in Miami, removed CN map, loaded Full CX, it shows in my maps list and it works fine

1bsHY