Unplug the rca cables from the back of the deck, if the unit still skips with a speaker driven off of the internal amplifier, it is a deck issue, if the unit skips only with the rca cable plugged in, look closer at the rca cable and where it is ran. Next look at the amplifier. If it still skips, more than likely it is a internal problem in the cd player. Yes get the unit mounted properly as well.