Cover the whole speaker in foam, use Griot's Garage wash mitt, rinse with reverse-osmosis purified water and blow dry. No wait that's the car. Wash both sides with Walker Cleaning Solution, then Walker Enzyme, then two purified water rinses the last one vacuumed off with the, no wait that's records. Dang. Okay, okay got it now: soft brush furniture attachment on the vacuum cleaner!
The reason I forgot is I only did it one time, years ago.
The reason I forgot is I only did it one time, years ago.