ok lets start with an 01 screw the HU has a code of CDDJ error i cant get rid of it i tred to erase the whole memory on the unit but i can't tried the old disconnect the battery did not work tried the pull the HU out of the truck no good what do i do next ??? help would be good stumped in cddj oh ya stock radio and cd changer in console

 

You need a cddj harness to connect to the radio to the changer harness. It retails for around $30.00-$45.00