I completely with 2.5 - use contact cleaner, not WD40. That stuff will get everywhere in the radio, and while it might not cause problems, it will make a mess. WD40 doesn't belong in electronic gear, except maybe in very small doses as a lubricant only. The problem we're trying to address here is poor contact at the wiper of a potentiometer, usually due to some dust or other crud getting in. Contact cleaners are not hard to come by - even the Home Depot by me carries 3 or 4 different varieties (even one that's a WD40 product!). I will say that the video shows a creative way to get whatever cleaner you use in there, and should work with contact cleaners, as most come with the little red tubes, too. Contact cleaners usually evaporate very quickly, which is good because they all tell you let the components dry completely before energizing them to avoid possible high resistance shorts due to the liquid.
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88 Fiero GT - Work in Progress
