You don't even need that, there are people who retrofit 3.5mm jacks into jack-less iPhones. Ie, the iPhones that were designed to be without audio jack still ha

You don't even need that, there are people who retrofit 3.5mm jacks into jack-less iPhones. Ie, the iPhones that were designed to be without audio jack still have enough space to accommodate a hub to switch the lightning port and a DAC for audio output AND a 3.5mm port.