Who is Patty L?
True I do work on vehicle on the street. I have been installing car electronics since 1989. I may not remember everyone but I have not had anyone return multiple times for the same problem that I could not fix.
I also don't remember Dan H.
If you experience problems with anyone's work you should make the business aware of the problem and allow a honest attempt to correct the problem.
When looking for a product talk to the sales person or installer. If you do not feel good about the deal walk away. And if the sales person or installer is not willing to look your vehicle over, what service are you getting? I will give you 10 minutes of my time to look over any problem you have be it my work or someone else's. Anyone in town do that?