So I have a Alpine MP3 CD Car Deck (CDA-9886), and for a amplifier i have a Alpine PDX-4.100 , and then 4 polk audio db6501 component speaks. Every starts good but then the music just stops, turning up the volume does nothing, but the play time keeps going with the song then it will cut back in after a couple of seconds then cut out again and it keeps doing this. Any one know what i should do ?