Own a 2015 Heartland Landmark Grand Canyon. The Speaker System in the Living Room is a Samsung HW-F355 Speaker System. According to all I have researched and the Owner's Manual, there is supposed to be a Woofer with the System. Cannot find the Woofer anywhere. Has anyone experienced the same issue. Or, does anyone know where the Woofer may be located. Have not contacted Heartland yet. Hoping someone may have info. Really don't want to bother Heartland any more than I have to. Thanks, Robbie