If your car has no a/c you can probably remove the radio from underneath…where the a/c evaporator would be. If you do have a/c the dash has to be removed which is actually not that tough a job…especially if you remove the steering wheel, drop the steering column and remove the bucket seats. You really don’t have to completely remove the dash…just enough to remove the radio from behind it.
If this is the route you take…tag any and all wires you have to disconnect…you’ll save yourself grief later.