Its all in right, im using the ford plugs....got em out of an old stereo and soldered them onto the pioneer wiring. Plug the main cable in, power's fine, front speakers work, constant...all good. Plug the little 8 pin plug in (the rear speakers) and silence, player still plays...does wateva....all the speakers go off i.e.mute. The rear output from the cd player is fine, i checked that.

Any ideas?? Cheers

Thanks heaps for all the help its ok, turned out, one of the back speakers was shorting out, and pioneer headunits have a built in safety thing that turns the internal amp off in the case of a short. So there u go if u have the same problem....

yep was gonna say that has had this happen HEAPS and HEAPS of f**k times