Yamaha Electronics Corp. and XM Satellite Radio announced a partnership under which the companies will bring to the market the first XM-ready home entertainment products. Yamaha will manufacture four new receivers and several new home-theater-in-a-box systems with XM “Connect-and-Play,” a revolutionary technology designed to integrate XM into a broad range of home entertainment products. The first Yamaha XM-ready receivers will be available at retail outlets in early April. Financial terms of the partnership were not disclosed.