there should be 2 screws holding the cigg lighter and plastic on take those out then drop the dash, take the 2 screws that are closest to the radio out, then take the 2 or 3 screws that are holding the panel below the steering wheel out, drop that panel,
remove the cigg panel, there should be 2-4 8mm screws holding the radio in from underneath locate those screws then take them out. the whole panel around radio along with radio should pull out of the dash now. you should have it from here