| Business | Phone |
| Auto Sound Ctr 3810 Southwestern Blvd, Baltimore 21229 | (410) 644-1265 |
| Pagan Audio 6804 Holabird Ave, Baltimore 21222 | (410) 282-2849 |
| Digital Audio Connections 4801 Belair Rd, Baltimore 21206 | (410) 325-8912 |
| Ideal Audio 4016 Reisterstown Rd, Baltimore 21215 | (410) 367-6317 |
| M & G Car Audio 1400 W Patapsco Ave, Baltimore 21230 | (410) 354-4887 |
| Planet Auto 1616 Cole St, Baltimore 21223 | (410) 233-2422 |