Sap on a Cloth Top

Hi All,
I took delivery of a 09 Mustang convert. with a cloth top in July 08. Within a couple of weeks I had two sap spots (evergreen) on the top. We get a lot of rain here in BC so last fall I used AutoGlym Fabric Hood Cleaner and Protector. The cleaner didn't touch the sap, so before I reseal the top this fall I need to deal with the sap.
Any suggestions?
Thanks.
 
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