i just bougt a alpine cda-7893 and i was going to do the installation on my 96 bmw m3. i installed it using two adapters, one bmw to universal and one universal to alpine adapter. i also had a european antenna adapter. i connected all the pieces and turned on the unit. when it turned on the radio played just fine, but the cd player somehow didnt work. it showed the time going like the cd was playing, and the graphics were moving like there was music but no music came out. did i get a defected deck? thanks for the help