At the Great Appliqué Installation Event at delanman's house a few weeks ago with the help of SUPRKAR we also installed carbon fiber side view mirror caps on my car (SUPRKAR already had them on his). We started by removing the painted caps and here's what we found underneath -- the GPS and wifi antennae. As the carbon fiber partially blocks the signals SUPRKAR installed a signal booster. With that the GPS, wifi, and phone connections are better than stock. Here's SUPRKAR placing the carbon fiber cap on the mirror. Easy to do -- just snaps on. The final result is much better than the vinyl carbon fiber warp solution.