I have 4GA running to a distribution block that splits off into 4 8GA ends. I want to run 8GA from the block to my amp and powered sub but I can't seem to find car audio quality cable anywhere. Crutchfield doesn't have anything in stock and Amazon has some junk looking cable with poor ratings. The local electronic stores don't seem to carry anything. Can I just go to Home Depot and get some 8GA stranded wire? It won't look good like the clear sheath wire I'm using now though. Any recommendations? I only need about 8ft total.