USB Aux Switch Mod for aftermarket HU

@yyyiikes
These links should get you started.
USB Panel-Mount Type A Cable -- DataPro

 

There are much information on this forum and elsewhere. Google is good if you are patient. I spent 2 months researching before telling my installer exactly what to do. Like I said in the PM, my project was doable at home, but I just did not have the time. So I paid to have it done my way. Hope that helps and good luck.