They largely listen to KROI and KOVE 😉Catholics listen, too. Where else would they go? 1110? 😂
But yeah, CCM being a niche Evangelical thing is reason why Salem failed with a CCM in Chicagoland and had to trade it to Univision - most Chicagoland Christians are Catholic. It took the EMF donation-fueled apparatus to make it work there.
Interestingly, the CCM as cringe concept is less pronounced in Spanish-speaking circles, despite most of them being Catholic. There is no King of the Hill or South Park episode making fun of the genre. CCM artists will have songs that cross over to adult contemporary. Juan Luis Guerra had some of this biggest hits with religious-themed songs and Daddy Yankee seems to be repeating that success.
A top-rated CCM station in San Juan (and I believe a Miami station too) advertises itself as "the station for Evangelicals, Catholics, and people who don't attend church."