I'm looking for a wiring harness to replace the stock head unit. I have the Audiophile/Mach (whatever it's called) head unit with the stock sub and amp. All the harnesses I've seen for a 2003 have a different connector, the ones I saw have a more flat main connector, while mine has the rectangular one, here''s the front and back of my head unit:
The middle connector isn't used, I'm pretty sure that for a CD changer.
This is really confusing me so could somebody point me in the right direction?