Nope, what was that all about?
The "White Van Guys" were everywhere in the 70's and 80's, it was a sort of scam.
You would be approached by these guys in a parking lot, 95% of the time in a white van.
The pitch varied but it was basically "we have all this cool stereo stuff our boss has told us to unload and we can sell you this awesome speaker for like 90% off."
Car stereo speakers and amps too.
The gear was not usually stolen, but cheap, crappy offbrand stuff that sucked. the more savvy White Van Guys would produce some ad copy showing these stereo speakers they were going to sell you for $200 normally cost $1,000, that kind of thing.
Anyway the stereo speakers AND ESPECIALLY THE CAR STEREO SPEAKERS often had the waffle grills on them, because back then they were like mullets and Member's Only jackets, believe it or not actually considered to be "cool looking".
So you got the speakers home and they soon blew up or stopped working because well they were just cheap crap, but the "White Van Guys" of course were long gone by then.
I don't know for sure but I always figured the whole scam was sort of a MLM thing where the guys in the white vans didn't really make much but the suppliers of the crap gear and the distributors did.
I don't recall them ever selling musical gear or amps, just home and car stereo stuff as that was a much bigger market and musicians are harder to dupe.
Analogeezer