Ok so I have a 2008 Headunit with the AUX button. I put it in my 99 ranger but I dont know what i need to get the aux to work. I know I will need the factory cable but what els do i need and where can I get all of the stuff. thanks

 

Should just need an AUX cable in it, they are at any electronic store. It probably isn't switching to AUX because nothing is connected.

 

no there is no plug for my mp3 player i need the plug that goes from the back of the head unit the 20 pin plug to the mini jack. unless there is a mini jack some place that i didnt notice on the head unit.