If you want JC Views, then install one of the files [only try one at a time]. In Post #1, any of the full-screen files with picture size 480*270 are the intended JCV file for US/EU 1xxx series. But your TN 1470T uses split-screen as shown in the Garmin site image below, so try any 212*234 except maybe D3478140A.jcv which is exclusively for nuvi xx & Streetpilot app may or may not work. I think you'd be best to just experiment if you want JCV with the NA map. If you do, please report back to let us know which file works best for it.
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