Obviously my installer used plumbing strapping, but any sort of pre-formed 'S' or 'C' brackets would also work. These are readily available at places like Home Depot or Builders Square. I believe they can be attached with sheet metal screws. Or you can use nuts & bolts if you want to first remove the package shelf upholstery from inside the interior.
As long as you use common sense & install enough brackets, they should easily support the weight of your MDF shelf & components.
My window tint is one step darker than the legal limit allowed in Kansas where I had it installed. I believe the limit is either 30% or 35% (I can't remember) & I had to specifically request it as some tint shops refused to even consider installing anything darker than legal.
Now that I'm back home in California, I don't know what is the legal limit. But to be honest, I really don't care. Tint laws, IMHO, are Big Brotherish intrusive & have no business being implemented, let alone enforceable.
I'll willingly take my chances.
1999 SVT Contour, #2140 of 2760, Tropic Green - Medium Prairie Tan
Koni Sport struts; TSW Blade wheels; Nakamichi, a/d/s/, Boston Acoustics, Infinity I.C.E.
1989 Saleen Mustang, #89-0408, too many mods to list here
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