"Filled in white | Filled in white" = vents and floor

"Filled in black | Filled in white" = floor

Id go with white/white to see if it was working.

Also make sure that you click the fan on the right (the top one is for full fanage)

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1980 300D European
"The Red Fox"
200,000 miles

2003 Chevrolet Silverado

609 Certification