Works somewhat as advertised
2004 Chevrolet S10
Crutchfield Customer Review (What's this?)
They are good adapters BUT they only fit specific 6 1/2" speakers this is an advertising or marketing mishap besides that they work.
Pros: Works kinda, the plastic is meh, stainless steel screens though!
Cons: Doesn't specify that it only fits limited 6 1/2" speakers