With a CDR-23, press on the preset button until you hear a beep. This takes 2-3 seconds. I expect a CDR-220 is similar.
Becker CDR-220 manual
http://www.beckerautosound.com/pdf_guides/om43-4462.pdf
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2003 Boxster - Sold but not forgotten
Last edited by timothy; 04-03-2011 at 05:48 AM.
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