| Business | Phone |
| Autosound Specialist 309 H St Nw, Washington 20001 | (202) 289-8888 |
| Bass & Treble 1007 1st St Se, Washington 20003 | (202) 484-2600 |
| Discount Audio Sound & Scrty 5013 Georgia Ave Nw, Washington 20011 | (202) 291-3877 |
| T & D Auto Sounds & Acces 2300 Pennsylvania Ave Se, Washington 20020 | (202) 575-6199 |
| 12 Volt Mobile Electronics 309 H St Nw, Washington 20001 | (202) 789-8063 |