Robert Temple's "The Sirius Mystery" details a surprising wealth of Egyptian and Greek astronomical lore surviving among Mali's Dogon people. BUT he is careful to trace the roots of this back to Greek incursions south of the Sahara in ancient times. Put otherwise, the "ancient African traditions" that occultists like Kenneth Grant swoon over, in fact, derive from non-African sources. Grant and his ilk suggest that the Africans bequeathed the knowledge to Egypt. In fact, trnsmission went the other way. What Egypt knew c. 3000 B.C., the Africans had dropped in their mostly-incomprehending laps in the centuries before Herodatus.
As for your question, the Dogon do not use the Sonnenrad. But they do have a number of representations of Sirius' two stars (one of which is not visible wih the naked eye.) There have been some occult writers who suggest that Sirius itself is the black sun."