Yes, you can put a touch screen stereo system in an older car. But you need to keep in mind that usually older cars have small size space for car stereo to fit in. So you need to look for a single din size stereo which has a folding touchscreen that has around 7” display. You simply need to look for how much space is left after you remove your old stereo and what size of touch screen radio will fit into it. The folding screen is best because the whole screen can drop down and neatly go inside. But when it’s on you’ll have all kinds of features and options available to choose from. You can easily buy an aftermarket touchscreen radio and install it into the left-out space.