you will need a kit to make the radio fit into the accord. here is the link for that.
http://www.crutchfield.com/S-ZQwt34s...00&I=120997895
Please use the wiring adapter. It makes your life so much easier+you don't ruin your fathers car. Hacking into the factory radio harness is just wrong. And think its only 13 bucks for the correct part.