That looks like the adaptor that comes with the empeg tuner. I should have taken a picture of the back of the stereo.

The antenna plug looks like a XM radio antenna connector like this . So I need one that goes from that to the kind on the empeg tuner.

The ones I have found have the goofy plug on one end and the kind most american head units use on the other. I could use one of those but I would need a second adaptor to connect it to the empeg tuner.