You will need a 10mm socket to screw the ground wire. Note the location of the junction block.

I tucked the wire coming from the V1 unit itself around the windshield, tucked under the passenger airbag pillar, under the side of the car and back under the dash.

Good luck! Hope it's as definitive as it can be.... Positive comments are always welcome.

Attached Images

     

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2004 Porsche 911 C4S X51, Seal Grey / Black
2006 Porsche Boxster S, Guards Red / Sand Beige
2008 BMW X5 4.8i, Black Sapphire / Saddle Brown
2001 Audi A4 1.8tq, Laser Red / Black, APR Stage 2, H&R Coilovers
2002 Suzuki GSX600 Katana, Yellow