How remove odor from interconnect?

Yes, that was my case also.  I can't say for sure it was cologne but definitely a strong smell.  I previously stated an aromatic smell, but the dictionary defines aromatic as a pleasant smell.  After a few cycles of soaking with vinegar, rinsing and then baking in a toaster oven, the smell is barely there, only when my nose is about an inch away.  Initially I could smell them just walking in the room.  They are now usable, and I have them in my system now.  I suspect any remaining odor will subside.  Thanks to all for your suggestions!

Put them out in the sun. Bring them in.
Back out all day bring them in.
Try sunlight for a week.
Let the UV radiation do its work. 

I was thinking .... if these cables were from an Estate sale, there is a possibility that they were exposed to a decomposing human body. That is an awful smell and cannot be removed... you basically have to throw all in a fire.

Cannot be covered up with perfume or fabreeze... nothing.

@gbryant - Interesting observation.  In the case of my cables, the dude probably used his entire supply of Old Spice just before passing.

Use a cleaner with enzyme digesters. Let the cables soak (if they are covered in solid plastic  jacket) in the ensymes solution with the connectors out of the moisture. These solutions work when wet. They work on bad drains they will work on old spice.