Welcome to Mark I Electronics!

Mark DiGiulio graduated from University of Illinois at Chicago (UIC)  with a degree in Electronics Engineering. Mark I Electronics has been in the business of audio repairs for home and automobile sound systems since 1987. 

The purpose of this Website is to provide you with quality systems at affordable prices. We more than welcome audiophiles, hobbyists and audio enthusiasts to come browse and shop! You are welcome to ask Mark any questions in relation to your designs, projects or general questions about sound systems. We may not know all the answers to everything (we happen to know that no one has the answer to all questions), but we have been in this industry for quite sometime now. We have affiliations with professional installers for car audio and people who are in the business of bringing you great sound experience! We have resources to direct you to if we can not answer your questions. 

Installation: Please see our installation page, we do not perform installation on car stereos. We have a few places where we can locally refer you. The installation referred to in this website is related to installation of Home Theater Systems. If you are a home owner or a home/condo contruction company and Property Development Companies, please call for an appointment. We will be happy to come out and give you a quote for the job. 

Please email us for WHOLESALE Customers or call 

773-286-9209