NEW YORK--(BUSINESS WIRE)--Fitch Ratings believes that the massive cost cutting plan outlined today by RadioShack is likely not sufficient to forestall a restructuring of the company's debt in the near term. Fitch currently rates RadioShack Corporation's (RadioShack) Long-term Issuer Default Rating (IDR) 'C'. A full list of ratings is shown below. RadioShack's liquidity is severely strained, with $43.3 million of cash and $19.3 million of availability on its credit facility at quarter-end (Nov.