Please add your 17-digit RV VIN to the "About Me" section of your forum profile. We will need that information to research your concerns. Thanks in advance...
I believe Poly- Planer makes a exact replacement. Poly- Planer has a good history of making great quality product for the marine industry. I jumped on last set available from amazon, they will need to be painted black and careful install due to decals around speaker. May be a few weeks before I can post results. Depth is the big issue for outside and some inside installs on a RV.
Scott