Ford Factory Navigation radio connections

Kevin Regan New member Username: Kpregan34 Post Number: 1 Registered: May-07	Posted on Sunday, May 13, 2007 - 00:27 GMT Ok, I recently purchased a Ford Nav system to install in my Fusion, had it reprogrammed by the guys at ARC (recommended in a thread on this site) and it works great. Here's my simple question - there are three connection points in the back of the radio. Two are occupied with the existing harness. What's the third socket for? Thanks.
cal payne Silver Member Username: Skibum12189 Cleveland Post Number: 562 Registered: Mar-06	Posted on Monday, May 14, 2007 - 23:25 GMT take a picture of it
Kevin Regan New member Username: Kpregan34 Post Number: 2 Registered: May-07	Posted on Thursday, May 17, 2007 - 00:48 GMT Ok, here's shot of the back.
William R. McKay New member Username: Wmckay Fayetteville, NC US Post Number: 2 Registered: Aug-07	Posted on Friday, August 31, 2007 - 16:02 GMT Sir, the 24 pin (largest) is for the power and speaker wires, speed, back lights. The second largest is for sirius input, line-in and DVD input. The small one is for the Subwoffer output. If you need help in the future, please write me @ wmckay@nc.rr.com
Bernie Golchuk New member Username: Lincolntowncar Post Number: 2 Registered: Sep-07	Posted on Saturday, September 22, 2007 - 22:16 GMT Hi William, Can you please tell me what pin number on the large plug is for the speed and the pin for the back lights? Thank you.