Aux cord but no mode button
 

Hi.. so my dad got the 2007 s40 for me as a gift. The car has an aux cord but the button that should say mode says just cd. So I’m confused if was switched with a 2006 model or if there is a way to select the aux option.. please help! I need my music!! Lol..
https://cimg5.ibsrv.net/gimg/volvofo...ab3c45827.jpeg
This is the aux cord but look closely and see the cd button

If you don't see the usage description in the owners manual, then you have an after market part. Some of the after market parts use the CD Changer interface to connect external devices so pressing the CD button may do the trick.

Does it work when you press the button or not? Because I found an adapter that connects to the cd interface and I'm wondering if it's going to work.