So what part are you stuck on?
Unbolting the seat
Or harness plugs location?

 

Neither of those, it's releasing the white plastic wire harness clamp/guide (without damaging it) that was the sticking point. It turns out you do just have to pry the little tabs open with a small flathead screwdriver to release it. I thought there should be some clever way to do it without even stretching the plastic holding the clips in, but that doesn't appear to be the case.

 

Snap and post a pix please

 

It's the white plastic piece circled below

 

Ok that is the wire guide troughs

The 3 plugs are to the left of that
Yellow ,gray, white

That yellow maybe air bag stuff
So disconnect the battery first
So the bags do not deploy

 

Yeah, the plugs were never an issue. I had already disconnected all the connectors without issue, it was just taking apart the clamp/guide without damaging it that was the question.

 

So, have you installed the sound blocking material underneath the carpet? If so, please post the pictures.

 

Sorry, didn't take any pictures, but it was pretty effective for how much coverage I was able to get. The disassembly and reassembly itself isn't actually all that bad, but cutting and fitting the sound blocking layer was a major effort and the whole process took me about 10 hours start to finish. Generally sound blocking layers require pretty close to 100% coverage to make much difference and I was probably only able to get around 85-90% coverage. I ended up not doing any of the area under the center console with the sound blocking layer as I realized it would have caused issues with panel alignment when reassembling the center console. What I ended up doing to try and make up for that was to stuff as much sound absorbing material (a combination of 600L thinsulate and resonix fibermat) into the empty areas of the center console and to put an extremely heavy CLD layer on all the center console trim pieces. On a plus side from that the trim panels on that area now feel like they came out of a lexus, at least in terms of how solid they feel. The other change I made that had at least as much of an effect on road noise was to add the same kind of sound blocking layer, along with sound absorbing material where I could fit it, into the rear wheel fender liner. The rear wheel well seems to contribute significantly more road noise than the front wheel wells which was surprising to me as generally the drive wheels are the more important ones for road noise. I think the reason is that the front wheel wells, at least on the Prime, have a ton of LASD on the exterior side of the wheel well and then some thick jute and a factory mlv layer in the interior. The rear wheel wells have...absolutely nothing. Seriously it's just sheet metal and some trim pieces insulating the rear wheels.

On another note I've been playing with adding additional door seals I bought off Aliexpress and I've gotten to the point where there's essentially zero wind noise even up to 85 mph. I can take some pictures of all the door seals I've added if anyone is interested.

 

When removing the front seats, what bolt type/number is holding it in place? Is it torx or standard 12mm?

 

Oh sorry, forgot to reply to that. Torx T50 for the seat bolts. Also the torque spec for the bolts is 27 ft-lbs.