I need to install my Alpine CDA 7894 wiring harness in my 2004 Mustang. I have been reading that Ford does things ***-backwards, and has all sorts of different harnesses for all sorts of different years. What harness can I buy so I can do it myself and save $50 by not paying Circuit ******...Do I need to find just an Alpine harness or do I need to find a 2004 Mustang harness? Why am I so dumb about this? Can someone help me. If so please PM me, or email MatthewBrown6320761@yahoo.com please don't respond to this thread, I won't see it!! THANKS FOR ALL THE HELP!!!