Looking for an internship

Hi I was wondering if anyone on here can help me. I am currently 17 attending high school and am obsessed with cars. I love everything about them. After working in retail for 3 months I realized that it wasn’t as interesting as I though it would be. I recently started detailing cars on the side and am looking for an internship as an audio installer. I am very good with work and just need to be pointed in the right direction. Does anyone have a suggestion on what shops I should contact?