Both Arvin and Sparton started out in the auto parts biz and are still plugging along. Arvin is owns Maremont and makes exhaust parts along with the Gabriel shock brand.

http://www.maremont.com/NewFiles/history_MRMT.htm
http://sparton.com/about/history/history.htm

So let's see, those 2 along with Crosley and Philco make at least 4 firms with direct ties to the auto industry. Interesting ain't it?
Anthony