I have always had a huge interest in the Aztec, Mayan, and Inca civilizations which was bolstered by a recent visit to the Mexico City Museum of Anthropology. Was there any awareness of the Central American empires among the tribes of North America?
There's always room for discussion, but perhaps the section Pre-Columbian Trade and Contact in our FAQ will answer your inquiry.
There aren't many documents, but there are records of French fur traders who arrived to trade with the tribes along the coast of Maine, many of whom disliked foreigners, who mentioned contact with the cannibals of the Caribbean as a reason for their defensive trade methods.