deemee Curious on how to install one on my sedan since is doesn't have a antenna to block-off...1. get a screwdriver
2. unscrew antenna plate
3. pull out antenna cable
4. put antenna block off plate
5. screw back bolts
6. your done
Yep. All '99-'00 USDM Civic sedans (besides the GX) have the antenna in the rear glass. No need to get a block off plate. Your car has already succeeded in having what many others might like theirs to have.