Dude! I know u know a lot better than me regarding this matter, but with the deal I got, I mean who cares!not me tho! I don giv a sh1t wat dey say bout dis site, dey got a deal n I took it. if dat doesnt please d bbb, I don giv a rat's azz to dat. if dis X920 I bought malfunctions due 2 its own fault, ama return it! n if dey dont (which I doubt dey'll do), I'll remember wat u said bout dis not bein accredited. um new hea, so um not acquainted wid da things goin on....I hope I don violate any rule....I respect others opinion. n so does ma installer friend Taz. n hez pretty happy to hav business