A task force that will make recommendations for siting and financing a new football stadium in San Diego plans to meet with the Chargers Monday, the group’s chairman said today. Adam Day did not give further details about the meeting. He also said the task force is planning an open forum to take public input on a stadium plan. Mayor Kevin Faulconer appointed the nine-member task force Jan. 30, with an eye toward developing a plan by this fall. That would give city officials time to put together a ballot measure for the 2016 election cycle.