I have an infinity radio that has a different pinout on the back then the one posted above. A & B look the same, but C is totally different. C has horizontal pins in three rows. Top has 7 pins, two sets of two and then a set of three. (Two pins, space, two pins, space, 4 pins) Middle row is 3 sets of two. Bottom is like the top.

Anyone have documentation on this, or can direct me to an appropriate location? Thanks!