Hi, welcome to Just Answer!
I have added a complete wiring diagram of all the wires involved with the radio below.
Stereo Wiring Diagram
If you look at the wiring diagram you will see the wires on the stereo listed by numbers. First set is 24 is split 16 and 8. If you are trying to hook up an aftermarket stereo I do not have schematics for that.
Hello, I'm Chris, a current Ford Lincoln Mercury employee.
Thanks for coming to our website Just Answer. I will do my best to help you resolve your concerns. I try my hardest to respond in a timely matter and I will respond to any reply anytime I am online. If you choose to reply after an answer is posted to say Thanks. Please include "I accept the answer" in your text
The other expert opted out. So lets see if I can assist you.
I am going to send you every wire diagram for all of the radios from ford for this vehicle. If you can compare the wire colors this may help. The previuos screen shots I sent should be the only connectors on your vehicle.
The 05 focus and no other year focuses have offered RSE. Are you sure you have a focus radio in the vehicle now. This 8 pin connector should not even be there on this radio.
Can you pull the part # XXXXX the radio and give me your vin#?
Being that I work for ford as a tech I do have access to alot of info but the pinout to that connector is not available in the 05 focus.
I can suggest on last option which is to find a phone # XXXXX VISTEON which provides ford with the radios and repairs.