How do you remove the radio from a 1996 Honda Accord?

Yes this is a complex problem however if you are comfortable with some tools here is a step by step answer for you...

Step 1) empty the storage section under the armrest - remove bottom trim plate and remove screws - Pull out cup holder insert and remove 3 screws 2 down in the middle and 1 at an angle pointing towards the dash - remove the armrest and plastic surround as one unit - note you will have to lift the parking brake lever to remove this large piece of plastic.

Step 2) remove 2 screws holding the shifter / dash trim that are now exposed, may also have screw behind ash tray - and remove shifter trim - top part is clipped and the switches are wired so be careful and rotate item out of the way - disconnection wires is not necessary.

Step 3) you now have access to the stereo mounting screws on either side of the stereo - remove them unclip the stereo and install the new wiring harness dash kit and stereo.

Step 4) put everything back together in reverse - note when putting the armrest piece back in you will need to line it up and then smack it lightly from the back to get it to pop back into place with the base of the shifter.

If not comfortable with stuff get the manual as previously suggested or take it to a professional.

The question you ask is too involved for a proper answer. You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.