Wiring harness for factory Ford Blaupunkt??

[JBone07]

Hey everyone,

I'm new to this and I am looking for a wiring harness for my head unit installation. I have a 2003 Ford Focus SE 4 door sedan. My car has the factory Blaupunkt stereo head unit in it. Every place I look tells me I need the classic Ford wiring harness Metra 70-1770 . This is not the one I need. The one I need has to connect to 2 smaller connectors(one is gray, the other is black) There is also a third small square connector(yellow) but I have heard it doesnt need to be connected. I tried posting pictures of what I am talking about but I have to get my post count up before it will let me.

Thank you in advance for the help guys...

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[jco1385 5,000+ posts]

with or without factory subwoofer?

http://www.crutchfield.com/p_120701784/Receiver-Wire-Harness.html?tp=2977

^^ that's for either

 

[JBone07]

Where would the subwoofer be located?? It does not sound like it has a subwoofer.

 

[JBone07]

Oh and also, where can I find the part number for that?

 

[jco1385 5,000+ posts]

idk, probably the trunk somewhere. it just asked if it had one. and i think that's a crutchfield proprietary part number.