Hi, I am trying to figure out an old school Alpine 7905 that I want to install in my old school Jag. There is 3 sets of RCA on the back (this is a non amplified HU), one is for the front, one for the back and one is called Aux in. I had to rewire the cage since the last person to uninstall it cut all the RCAs.
I get the front and back RCA, they work as they are supposed, back and front, left and right. However, when I try to plug an Aux source in the Aux in, nothing happens... Is there something that I am missing????