This is a review of the Pioneer Model CDX-P670. This was one of those must have buys before the likes on MP3 compatable Car audi systems came in to play. This was perfect for those motorway drives when you could simply sit back, put your cruise control on and enjoy music for how it was meant to be enjoyed. Installing this could be slightly difficult for those who are of an older age but with some help it is easily fittest and you could be up and running within the hour. This also plays CD-R and CD-RW which means that you can create your own music and relax knowing full well that these will be playable with this unit. All in all this a good choice for those wishing to add a CD changer to the automobile. If you are to buy this product second hand I would make sure that you get proof of this actual working as some CD changers can become faulty.