Infinity Midrange Speakers at Crutchfield

Infinity Reference REF-3032cfx Reference Series 3-1/2 2-way car speakers at Crutchfield

Replacing my cousin's car radio via Crutchfield and got this warning. I replaced my own and both my parents and never seen this before. Legit, or just trying to sell me speakers?

Infinity Reference REF-6530cx Reference Series 6-1/2 component speaker system at Crutchfield

Infinity REF 3032cfx 3-1/2 2-Way Coaxial Speakers

Kappa Series 5-1/4 component speaker system

Infinity Kappa 503CF

Midrange And Full Range Speakers Compared, 43% OFF

Midrange And Full Range Speakers Compared, 43% OFF

Infinity Midrange Speakers at Crutchfield

Infinity KAPPA53XF 5-1/4 (133mm) Two-Way Car Speaker - Pair : Electronics