Re: Radio Only works when Ignition is on.
It appears that the systenm has been modified from factory original.
FYI, there are 2 multi connectors on back of stereo. One has eight pins which is the speaker connections. The other connector has less wires, which are power earth etc. The blue is +12v perm Bat and there is a thick red which is +12v perm bat as well. It was the red that had been cut and another red had been substituted instead. Obviously a wire that only has power when Ignition is on. It came in from the center tunnel area.
Reconnected to original and now stereo works without key.