| Business | Phone |
| Audio Plus 210 W Bradley Ave, El Cajon 92020 | (619) 441-2668 |
| Classic Sounds 1225 Broadway, El Cajon 92021 | (619) 444-2021 |
| San Diego Car Stereo 776 Fletcher Pkwy # B, El Cajon 92020 | (619) 441-9494 |
| Pacesetter Stereo 997 Broadway, El Cajon 92021 | (619) 444-2131 |
| Mobile Plus Auto Sound & Scrty 120 W Bradley Ave # C, El Cajon 92020 | (619) 390-5650 |