I played my iPhone on this model at Best Buy last month and it worked fine.
I own model number ICF-C7IP, the only issue I've ever had was when the hiding tray broke off when the clock flew off my night stand. Took me about 20 minutes with patience hands to fix it. I last used it to listen to my iPhone last night, worked just fine. I'm on the latest and greatest version of iOS.
2009 iMac 21.5", iPhone XR 128GB Black, iPad Pro 10.5" 256GB Wifi+LTE