This plugs in to the plug that the am/fm radio antenna cable plugs in to on the back of the factory stereo. It should work on any vehicle as long as you have the right adapter. I have a 2013 f150 and had to buy both male and female adapters. It was easy to install and it sounds much better then when i was using the aux cable. Not sure what blue wire you are asking about. One plugs into sirius radio and the other plugs in to car radio. Hope that helps