Not having snow and rain keeps things pretty clean. It's the couches, giant potholes, cell phone distracted drivers on the freeways that prevent cars from looking new for very long. Also, keep in mind I just replaced all the suspension less than 10k miles ago.
Went with AAWireless (off indiegogo). Took a month to get but it works really well so far. I haven't noticed any sound quality issues and so far it just seems to work. I get in the car, start it, and spotify (or whatever else I had been listening to) comes right up.