has anyone had issues with the z130 dvd player and fm reception. this hu is installed in a mercedes ml 350 with bose system. i installed the hu and i am a benz tech i went over the wiring to many times even removed the hatch panel to verify that the fm amplifier has power and ground to it. i think its either the hu or the trafic tuner causing the poor reception. secondly today for the first time i tried playing a dvd in the hu and i get disc unreadable message, i also tried 6 other dvds which are original copies and no luck. havent tried a cd yet.. tomorrow i will reset this hu and see if that helps but i doubt it. if not monday i will contact pioneer? any help is appreciated in advance