RadioShack today reported a wider-than-expected third-quarter loss as sales continued to slide.The struggling Fort Worth-based electronics retailer said its net loss was $112 million, much wider than the $47 million loss reported a year ago. Sales totaled $805 million, compared to $898 million last year, reflecting a 8.4 percent decrease in sales at stores open at least a year.RadioShack said sales declined in each product platform though it saw higher sales of prepaid mobile phones and in certain signature categories including portable speakers.The company also confirmed that it has received commitments for $835 million of new five-year debt financing. The deal, first reported by The Wall Street Journal on Monday, will help RadioShack replace its existing $625 million credit facilities and provide additional cash needed for its turnaround efforts.The lenders include GE Capital, Salus Capital Partners, CIT Group and Royal Bank of Scotland Group.The red ink marks the seventh straight quarter of losses for RadioShack, which has seen its customers defect to big box retailers such as Best Buy and online competitors including Amazon.com.We are moving forward quickly and as planned with our turnaround efforts. As we have said, we expect our work to take several quarters and during that time our results will vary quarter to quarter as we make strategic changes to improve our long-term financial performance, said Joseph C. Magnacca, who took over as chief executive officer in February. Magnacca said the company is making changes in its stores this fall. By the end of the year, we will have over 100 concept and brand statement stores open, he said. In addition, we are currently contemporizing our stores by significantly re-merchandising inventory in a more logical manner and improving presentation. Our entire store base of nearly 4,300 stores will see improvements from these changes which are being implemented in the early part of the fourth quarter.Magnacca, a former executive with Walgreens, said in July that he had hired turnaround adviser AlixPartners and investment bank Peter J. Solomon to explore refinancing debt. In August, Standard & Poors downgraded RadioShacks debt to CCC, saying a default was possible within 12 months absent a major business turnaround or increased liquidity.Separately, the company said it has hired Paul Rutenis as senior vice president, chief merchandising officer, and Janet Fox as senior vice president of global sourcing. Rutenis joins RadioShack from J.C. Penney, where he served as senior vice president, general merchandising manager for the Home division. Fox has spent almost 30 years in retail sourcing, most recently as a senior vice president at Under Armour.