In certain embodiments, a mobile media system is provided that includes an entertainment system having a first cable coupled with a first plug. The first plug includes a first interference surface. The system also includes a second cable coupled with a second plug. The second plug includes a second interference surface, and the first and second plugs are configured to couple with each other. The system also includes a retention device that includes a body at least partially defining a cavity configured to accept the first and second plugs. The retention device also includes a third interference surface configured to cooperate with the first interference surface to substantially prevent movement of the first plug relative to the second plug. The retention device also includes a fourth interference surface configured to cooperate with the second interference surface to substantially prevent movement of the second plug relative to the first plug.