The stock stereo in a 2002 Renault Clio is typically either a tape or CD player and doesn't offer a lot of extra features. There's no MP3 player connectivity, no DVD player and no navigation. To add those features, you have to remove the stock deck and install an aftermarket model with the accessories you want. Fortunately, that's not difficult, because the stock Clio stereo can be taken out with a Clio radio removal tool set, found at any car stereo installer or parts store.
Place one of the radio removal keys in the two holes on the left side of the stock stereo. These holes are stacked on top of each other, and the U-shaped key should have one post of each side of the U going into a hole, forming a handle.
Repeat Step 1 on the right side. Then place one hand on each key and pull them apart (pulling toward the doors) while simultaneously pulling them toward you to release the stereo.
Pull the stereo out of the dash entirely, then unplug any wiring or leads from the back of the stereo.