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I will be installing AntiLaser Priority soon and figured some of you guys would have discovered the best way to route wiring through the firewall into the cabin.
I found a thread on this pointing me in what looks like the right direction. Looks like you want to pop off the fuse box cover at the top of the firewall on driver's side and then unscrew the top fuse assembly to move it out of the way. At that point their should be a piece of foam in there to push a bit out of the way to run the wires and then pop off that panel above your pedals in the cabin and look for light coming through or the wires you pushed through.. Haven't done it yet, but after an initial look it sounds plausible. I might have to drill a small hole in the side of the fuse box (plastic) though and then route through the foam.
I will let you guys know after I get to it. Might be a couple of weeks out yet. Other projects going on before that.
I finally got to looking at this a bit closer and I believe I found the Holy Grail for getting through the firewall! I will need to confirm my find this weekend by popping off the panel above the pedals in the cabin. But I did find a sweet 1 inch diameter grommet that looks promising as you will see below in the pics. There is even a vacant cable hook lead-in toward it. It is unused. So either the madmen in Stuttgart thought ahead and did us this favor, or there is some option that I am not aware of that my car does not have leaving this vacant. Car is loaded, so I kinda doubt that. I wasn't sure when I first saw it if it was a rubber grommet. So I pushed fairly lightly on it with a long screwdriver and the darn thing slightly popped through toward the cabin. This is what I need to confirm this weekend.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
