I Set-Up the other day our neighbours car so that they can control their child’s iPad (seated in rear of car) from the front drivers position.
Found this £16 device on Amazon (TUNAI Button Media Remote Control) which allows you to whilst driving to play / stop your music, set the volume up / down, move a song forward / back without having to look at your device. The integrated battery has a lifetime of up to three years.
I attached it to their steering wheel and seems to work well, allows them to play downloaded children’s movies etc.
Just sharing the knowledge and I am sure there are other products out there that do the same, but for under £30, good deal;-)