For years I have always used the blue wire (antenna) for the amp turn from the head unit. If you do this now the amp won't turn on when listening to a CD. Now you have to use the blue/white lead.
For years I have always used the blue wire (antenna) for the amp turn from the head unit. If you do this now the amp won't turn on when listening to a CD. Now you have to use the blue/white lead.
That's always been the case since a universal color code was implemented. The exceptions are that some head units have only a blue wire, and others have only a blue/white; in cases where both are present, the blue/white is the amp remote wire.