Well, it depends on what your radio looks like... Most radios have a bolt sa base nya that mounts to a vertical bracket sa likod ng radio (dash), others naman has a sleeve. In most cases, radios are mounted and removed from behind the dash console. Once you get the radio out, the rest is easy, it's just a matter of removing some harnesses (unless bad trip yung naginstall ng radyo na spli-nice ang mga wires instead of using a harness.