On 3 SEP Sirius XM Holdings Inc. (NASDAQ:SIRI) announced 7 Days of Style; SiriusXM’s programming will feature interviews, tips, and rare behind-the-scenes access to some of the world’s most respected designers and stylists. SiriusXM hosts and world-renowned experts will share the season’s latest must-have styles and trends in fashion, beauty, and accessories. On Wednesday, September…