I got my mustang about 3 years ago now. The CD player worked for awhile and for the past year or so I've just been listening to the radio or none at all. I was searching online to get a Aux adapter and PIE does not make them any more.
However, there is one on AM that is supposed to work.
Mustang Hands Free MP3 Adapter (87-06 All) - Free Shipping
Here is the real problem. It gets rid of the radio which I'm not a huge fan of but I have spotify which is why I want an Aux cord.
Also, do the Mach 1000 and Mach 460 have the same connectors? It says all but I am not sure how it could fit every radio from 86-06