99xcss4
frank'n (truburban) K-2500
found some thing for my amp that is going in frank'n truck https://loudaf.net/collections/acrylic-backplates/products/skar-amplifier-backplates
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found 1 more https://santafe.craigslist.org/tro/d/santa-fe-1989-dodge-ramcharger-4x4/7744334880.htmlsorry that it is not a gm but you just dont see a whole lot of these https://elpaso.craigslist.org/cto/d/el-paso-1983-ramcharger/7746721623.html