The needles can be purchased for $75 each but I suspect this is pc board component issue. I read on here or another Lexus site that needles that are almost completely dark are harder to repair ... if the problem is the coating or material then that wouldn't seem to make a difference. I think Jim and Mr Whizard provide a valuable low cost service compared to the dealers, and judging by the number of satisfied customers and cheerleaders they must do a great job. However, in the spirit of owners helping fellow owners I think I might inclined to share the info ... maybe not :)