Quote:
Originally Posted by p0onsta
i suggest connecting the positive wire to the starter and making a hole through the main ECU harness grommet to feed the 0 gauge through. Get audio 0 gauge cable since it's more flexible. Run inside cabin and you should be able to get it through to the trunk behind the rear passenger side trim panel.
At the rear passenger side corner of the trunk are a few bolts that you can use to clamp down a battery tray. 1 of these bolts won't line up to the standard battery tray holes. sand the body down here and you can use that for the ground.
there: no holes drilled in metal and wire safe from dangers of bottoming out
just be cafeful when drilling the grommet to not hit any ecu harness wires.
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Instead of cutting the engine harness grommet, use the existing grommet behind the fender liner in the wheel well. It's for the washer fluid hose for the rear wiper on S13s, or the hood release cable on RHD S14s. 99% of cars don't have anything there, just pop it out, trim it to fit, then snap it back in.