[HWYSTR455]

That's what I do, go all the way to the body 'ridge' under the sill plate. I use a soldering iron to make holes for the sill plate screws, as well as other screws/bolts that pass thru the carpet.

On that 'triangle' piece, I've tried it a few ways, only way that really works is butted up against the 'triangle' piece, going rearward, tucked under the rear arm rest panel. I leave it slightly long under that U bend in the sill, just standing up, which helps keep it from being pulled out from under it. You can use the soldering iron trick against the edge there along the 'triangle' and forward if you want to help prevent frazzle.

A heat gun on the back of the carpet helps when trying to make it sit better in certain contours of floor pan, if you want to go that far.

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