Stereo Sound System

Take your hard earned money elsewhere to a place that is trustworthy. It takes a lot for me to make a negative post about an establishment, but I want to warn others.
I had Stereo Sound System replace my wife’s stereo for her 2015 Christmas present. I spoke with the sales person on 2 occasions about my request for the stereo + wired mic + keeping her steering wheel controls working. I’ve had several stereos installed (a couple from them which makes it worse), so I know to ask for this. He even showed me the setup on a similar car with all of the amenities which I was interested in so I went with the deal.
After driving for a couple of days, my wife realizes that the steering wheel controls are not working. I’m thinking, people are allowed to make mistakes I’ll just take it back to get it corrected. Not so much. He wanted to charge me more money to add the steering controls as he insists that we did not talk about the steering wheel controls during any of our conversations. I replayed our conversations and also reminded him that he asked me if I wanted to keep the steering wheel controls active.
I made a huge mistake for trusting his word vs getting EVERYTHING documented in advance. I expect a profession shop to be upfront and open about the products and services that they sell each and every day vs this bait and switch technique for trying to upsell.
He couldn’t care less about me filing a report against their poor service or losing me a future customer. Well they’ve lost this one for life.