most of the time a $20-25 mast is all that's needed, sometimes you need to take the antenna apart to extract the remains of the plastic whip but that's not hard, get a new rubber grommet for the top to keep water out of the trunk, they are only a couple bucks you need to drop the antenna out of it's hole to install the grommet in the body a couple 8mms and 2 plugs and it's out