I just replaced the MULF2 in my car… easy Peasy… found one with matching 7-digit, dropped right in, no programming necessary…

when I plugged in my iPhone 13promax the stereo said, ‘USB device incompatible’ or something like that…

anyone else have this problem?

I like using Apple Music/pandora/SiriusXM.. but I’ll use the AUX cable if necessary