I have a problem with my NaviDrive 3D in that some cods/ dvds read some way through while playing then comes up with a read error. I am assuming this is a fault with the laser. Also does anyone know where a cd changer would fit in a citreon c5 exclusive (2009 model ). Looking maybe to replace the NaviDrive with a refurb or second hand one if anyone has one for sale at reasonable cost.