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this should be it. i think its the site i used when doing mine

wiring diagram

there isnt a 'amp on' output from the radio or RCA outs. what you have to do is find the 12V ignition wire (a good 10 mins with a multimeter and turning the ignition) and then splice into the rear 2 speakers and wither use a high level adaptior or if your amp has high level in's use them.

before you cut any wires but esp for the speakers use 9v battery test that you def have the right wires.

next time im off ill prob do a quick quide but be a few weeks
 

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Try this :-

http://fordwiki.co.uk/index.php/Quadlock_S..._-_Facelift_Mk3

There may be minor changes, but only to connecters B & C.

I've used this for several BT (+USB) retrofits. To both Focus mk2.5 and Mondeo mk4.

You can get wiring diagrams from Ford Technical 09065533447 PREMIUM RATE £1 a minute, sent by fax or post.

I've found Focus wiring diagrams to be very difficult to follow. As I'm only doing BT retrofits, I tend to stick to the Mondeo mk4 diagrams.

Hope this helps.
 
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