I purchased this after reading all the reviews online. I expected this to work well in my 3 series.But was a SUPER let down. I also tried it in my wife's Corolla. Was'nt much better. Tried every single frequency, different times of the day at different locations- almost 5 towns in MA.But there was ONLY static NO music. I also tried the Monster connector which works a lot lot better.Disappointed with this purchase !!!!!!