The RVs we saw were Canadian or American rigs headed north on 57. The satellite radio quit for good when we entered Guanajuato. The antenna is the standard car rooftop fin. As one who tried getting DirecTv in Mexico years ago I draw the line at having a rooftop array just to get Sirius. 57 through Querétaro is major league torn up due to massive construction. Down to 1 or two lanes north or south. It will take at least a year to rebuild this critical route.
We've noticed an absolute lack of US or Canadian plated passenger cars on this trip. It's a shame people are not enjoying Mexico.