I hear a small buzzing sound w/sik-imp

[threefromthekey]

I just hooked up my ipod to the car with the sik-imp, and have now noticed that there is a small buzzing sound in the background that is pretty annoying. The sound rises and falls when I rev the engine...the music works fine, but that buzzing sound sucks for any song that isn't really loud...

anyone heard of something like this and can offer any help?

[TheBum]

Does the buzzing go away if you disconnect the power cord from the imp's "dongle"? If so, you likely have a ground loop. Do a search for "ground loop" in these forums for more info.