Cash-strapped San Diego doesn't have the money to help the Chargers build a new stadium, Mayor Jerry Sanders said, opening the door for Southern California's only NFL team to leave the city it has called home for 45 years. Sanders said he plans to ask the City Council to amend the Chargers' lease to allow the team to begin looking at sites elsewhere in San Diego County before the end of the year. If the team fails to find a new home in the county before Jan. 1, the Chargers would be free to negotiate a deal anywhere in the country. The Chargers can leave San Diego after the 2008 season if they pay off the approximately $60 million in bonds the city issued in 1997 to expanded Qualcomm Stadium. "I do not think it would be prudent or honest for me to say to taxpayers 'We can't resurface our roadways, but we can finance a stadium,"' the mayor said.