Can you tell me how big the radio is in a 2000 Celica?

The 2000 Toyota Celica's original radio is double-din in size. If the radio isn't working, it's likely due to a faulty fuse. To access the fuse box, check to the left of the steering wheel for a small seam or crack on the dashboard. Use a screwdriver or prybar to carefully open this panel. Inside, you'll find various fuses. On the back of the panel, you'll see a diagram indicating the function of each fuse. If it's not on the panel, you can also refer to the vehicle's owner's manual. Once you identify the needed fuse, pull it out. Check if the thin metal strip connecting the two raised sections is intact; if it's broken, the fuse is bad and must be replaced. If the strip is intact, the fuse is still good and can be reinserted. Replacement fuses are inexpensive, usually around $10.