ProSource concluded a series of high-level e-commerce meetings in Chicago this month. The gatherings brought members of the specialty A/V and custom install group together to brainstorm key digital shopping issues, including conversion optimization, social media, consumer acquisition patterns, e-commerce trends and the evolving mobile shopping experience … The Home Technology Specialists of America (HTSA) has added San Diego-based Modern Home Systems to its ranks as the buying group’s 66th member. The specialty retailer and integrator was recently acquired by Otto Benson, principal of La Jolla Home Theater & Automation, who is looking to further expand his operations in the San Diego market … Mobile Electronics Specialists of America (MESA) announced a new membership level for retailers. The MESA Gold level is designed for car audio retailers that want the marketing, educational and group buying benefits MESA has to offer but do not meet the volume requirements needed to join the original group of MESA Platinum membership, the group said … Nationwide Marketing Group and Azione Unlimited have begun registration for their upcoming member meetings. Nationwide’s biannual PrimeTime! event will be held at The Gaylord Texan in Grapevine, Texas, Aug. 11-14, under the theme “We are Independents: Strong, Proud, United,” while Azione’s “Fall Fete” is slated for Sept. 10-12 at the Westin New Orleans Canal Place … BrandSource has launched an enhanced consumer-financing program that combines low rates for members with new consumer promotions.