Some German users have found a way to install torque pro onto the head unit of the car.
They do this on the I oniq Electric, but the same technique should be available for our car as well.
German YouTube Video : - Hyundai und KIA - Torque Pro und ABRP direkt im Multimediasystem nutzen!
To succeed on the Soul EV we need to get into engineering mode. The access code seems to be different from that shown for the I oniq in this video.
There's another video which shows better how to get into engineering mode and install the files.
Russian YouTube Video : - How to HACK Navigation/Multimedia systems KIA/HYUNDAI and install third-party applications
Note the warning -