F150 under dash grounding points

[lightspeed 10+ year member]

I have an 03 F150 ext cab XL. Can any of you that also drive F150's tell me where some easy-to-get-to grounding points are up under the dash?

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[johnecon2001 5,000+ posts]

Pull up the carpet or peak around under the dash until you find clean metal. Use a Multimeter to test the resistance of the pioint. every car is different, what worked for others may not work for you.