Thanks for all the suggestions but we´ve drifted off the original post.

The issue is the AUX-IN on the centre console has stopped working. It worked before with a male-male standard audio cable, I need help troubleshooting. The Y cable and the tune2air won't work because they rely on the Aux-In audio working.

Where does the connector on the console go to? the receiver on the dash? or the trunk where the MULF and the rest of the stuff is? I would really like to get this working again.

Thanks again everybody of the suggestions.