Mobile Audio & Alarm Inc

I had a horrible experience with these people. I had a remote starter installed by them in January of 2014 and had nothing but problems with it. I made several trips back to have them correct the issues. My latest problem is that remote stater drains dead the car battery. They deny any wrongdoing. I will have this professionally removed at a reputable shop and will get full documentation of what Mobile Audio actually did to my car. I filed a complaint with the BBB which they completely ignored (they are listed as Six Corners Mobile Audio & Alarm). The State of IL shows that Mobile Audio & Alarm Inc. was dissolved in 1995! Do they operate illegally or are registered under different name? Since they ignore formal complaints and horrible reviews (see Google , Yelp) I have a feeling they are illegal.