This is how we do the jumper to keep the park lamps on in middle-position & out-position on headlight switch:

Park Lamp Jumper

The jumper connects the blue wire and purple at the headlight switch harness.

Tony Smith
4-5-6 Chevy Trucks
501 Scott Avenue
Kansas City, KS 66105
913-207-7789
[email protected]
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Custom Parts: http://www.flickr.com/photos/4-5-6chevytrucks/sets/72157627022818563/
www.4-5-6chevytrucks.com