With the sunroof open, i cant hear anything. I mean it is load as hell. I dont have the bike racks. But, all i got was the load warrior. It coems with the air deflector for the front of it. I plan on mounting my hella lights up there somehow though. I wanted the bungee thing, but it wasn't in stock. I bought this at a sports store called Galyans. It might just be in North Jersey; ther's none where i live. It was around $300. Frank X.