[stinkboy]

i have the neon glow pedals on my car. they are wired to the head lights and all was fine until i changed my whole sound system. now i have a high pitched sound which is low in volume (sound) when the pedals are lighted with the head lights. i know this is the problem because i disconnect the ground and the high pitched sound disappeared. i have tried powering through other items on the car and about 50 other ground items but no go. this happens even when engine is off, as long as glow pedals are on. i have another set of pedals in my desk at work that are also nice that dont glow, but my kids think that the neon is kewl. my actual question is, is there some sort of resister or transitor that can be solded in between the ground or power to stop this high pitch pissing me off sound?