Im still having problems with my Symphony 2 head unit, the cd changer part of unit is displaying cd error 3 which is a mechanism fault. I have bought an A6 unit off ebay that was advertised as brand new, i plugged this into my car and it appeared to work at first but when i tried to load cd's into it it has come up with the same error 3. This has left me unsure as to wether i have two faulty units or if i have done something stupid when rewiring my top connector of the unit to install my stealth sub. When installing my andy mac stealth sub i had to repin my top plug as i have the solid type so was unable to just plug in the mini iso adaptor, to convert to rca's. i know i have repinned the line out connector as this part works perfectly, i just want to confirm i have done the can part of the connector right (i'm fairly sure i have but just want to rule it out). I currnetly have a wire going to Can L and a wire to Can H, but nothing connected to CD-GND, can someone with this same setup please confirm this is correct.