Your car might have ground issues | Page 22 | Ford Focus ST Forum
Ford Focus MK1 - Where are my earth points? - YouTube
Random black/blue wire-black:yellow wire | Focus Fanatics Forum
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Install Ford Aux Lead - MP3 Adapter - James Simpson
loose ground wire coming from fire wall -- where does it connect? | Taurus Car Club of America : Ford Taurus Forum
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GROUND DISTRIBUTION – Ford Focus ZX3 SES 2005 – SYSTEM WIRING DIAGRAMS – Wiring diagrams for cars
How To Clean The Battery Ground Connection On A Car - Ford Focus - YouTube
Burning ground wire | Focus Fanatics Forum
Mysterious ground connector | Focus Fanatics Forum
Bluetooth Module - Ford Focus Club - Ford Owners Club - Ford Forums
How to Diagnose Automotive Electrical Ground Issues
Did some more ground work // additional 24" ground cable for a better connection / also sanded down the 2 ground points under the airbox : r/ FordFocus
Your car might have ground issues | Page 22 | Ford Focus ST Forum
Main Chassis Ground - Causing Issues? | Ford Focus ST Forum
2005-2007 sub installation, information on all models | Focus Fanatics Forum