hi there i have recently purchased a genuine vw ipod interface for my mk5 golf to replace the denison one i had fitted. I have wired it in correctly but when the car is running there is an interference comes through the speakers like a whistling noise and gets higher pitched when revs pick up. does anyone have any ideas why this happens and of any possible fixes cheers jay. Also does any body have plans for making a sub enclosure for the side of the boot as i would rather make one then buy one cheers
