I would start by popping the USB plug out and making sure the connectors are seated correctly. Then chase them into the back of the radio and seeing if they connected correctly. If so then one of three things. Bad USB connector or cable between the radio and USB connector or bad APIM (Radio) if you are under warranty take it in and let them deal with this. If not start simple by checking connections. Then USB hub next cable then APIM.

 

 

 

Yup it has 5V's on it to charge your phone or what ever else you want to power. So if something was spilled in it then it might have shorted it out. Plug your phone in and see if you get a charging indicator. If not you have your answer. They cost less then $50.00 for a new one and they are easy to change out.

 

I changed out the usb port and its still not working. Would it be the cable between hub and radio also?

 

I changed out hub and it still doesnt work, could the cable be bad too going to the radio?

 

If its not the hub then your only choices are the usb cable or the 12V power. The light can be on and not have 12V power.

I did a Sync 4in to 8in conversion on my truck so I don't know where that power comes from on your truck.