| Business | Phone |
| Clarion Corp Of America 661 W Redondo Beach Blvd, Gardena 90247 | (310) 327-9100 |
| J & J Auto Alarms & Stereo 2400 W Rosecrans Ave # E, Gardena 90249 | (310) 327-7464 |
| Automation Custom Sound & Sec Gardena 90248 | (310) 527-4391 |
| Subsonic Systems Llc 17915 S Figueroa St, Gardena 90248 | (310) 532-6500 |
| Mobile Kraft Gardena 90248 | (310) 324-5277 |
| Alondra Auto Sound Inc 1403 W Rosecrans Ave, Gardena 90249 | (310) 323-5543 |
| Audio Land Car Stereo 1511 W Rosecrans Ave, Gardena 90249 | (310) 324-4444 |
| Carstar Inc 16010 Crenshaw Blvd, Gardena 90249 | (310) 323-6738 |
| Electro Express 2618 Marine Ave, Gardena 90249 | (310) 515-1486 |
| H P Wire & Cable 13212 S Western Ave, Gardena 90249 | (310) 324-5301 |
| Javier's Auto Security Car Center 14118 S Vermont Ave, Gardena 90247 | (310) 323-9947 |
| Mobile Communications 15622 Crenshaw Blvd, Gardena 90249 | (310) 516-7895 |
| Mobile Tech 817 W 133rd St, Gardena 90247 | (310) 329-6453 |
| R & G Speaker Repair 2620 Marine Ave, Gardena 90249 | (310) 851-8116 |
| Perfection Audio 1931 W Artesia Blvd, Gardena 90247 | (310) 327-4900 |
| Yamada's Radio Svc 13970 Van Ness Ave, Gardena 90249 | (310) 768-0078 |