Would really need to know the model of the radio in the car, or the car's year/make/model if stock to have an idea of the available connections to the car.
I will say unless your owner's manual mentions a 3.5mm to USB support I doubt you'll find anything like that. I've never heard of it. USB is a "digital data" signal while the 3.5mm jack is analog audio.
In one of my cars I have a 3.5mm to cassette that I use and in my other I use a 3.5mm to 3.5mm with the AUX input on the radio. I have also used Bluetooth audio with other cars, rentals while on work trips.