Aftermarket stereo/AUX options 2007 Sonata Mach DSP

Hi, CluelessPerson here.

So, I have a 2007 Hyundai Sonata with a stock Mach DSP stereo.

It doesn't have XM or the CD changer.

I need at AUX input, so I want to find the easiest way to go about it.

I could either install an aftermarket stereo, or install an fm modulator. I don't need a super-expensive stereo with lots of bells and whistles. I just really want to be able to connect my phone or an MP3 player without screwing anything up.

Does anyone know which aftermarket stereo will work in this car as a replacement? I don't want to buy something that will require me to splice wires or break anything.

Or should I just install an fm modulator?

Thanks.