Try this link for a diagram of your antenna. It helped me when I was cleaning and repairing my Hirshcmann.

http://www.geocities.com/odemer@sbcglobal.net/

John

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Certified Registered Nurse Anesthetist (CRNA)
2002 F250 powerstroke with Plantdrive WVO conversion
1983 300SD 190K miles ,sold
2006 E320 CDI