I found a plugin for QGIS to play a GPS Track. (Data player plugin).The Problem is I can not read .gpx File with this plugin.
Is there another option?
I'm afraid the Data Player plugin only plays data that was collected by the Data Gather plugin. A simple GPX file does not contain all the information that is written by the Gather plugin. That plugin uses NMEA input, not GPX.
The GPS Tool allows you to import a GPX file, but not playing it.