Blaupunkt was a German manufacturer of electronics equipment, noted for its home and car audio equipment. It was a 100% subsidiary of Robert Bosch GmbH until 1 March 2009, when its Aftermarket and Accessories branch including the brand name were sold to Aurelius AG of for an undisclosed amount After a troublesome past and several changes in ownership and reorganizations it filed for bankruptcy in late 2015 with liquidation proceedings completed in early 2016 2up2f