| Business | Phone |
| A & B Sound Shop 12035 3/4 Regentview Ave, Downey 90241 | (562) 861-1644 |
| Men Car Stereos & Alarms 9524 Firestone Blvd, Downey 90241 | (562) 622-2355 |
| Sound Scape 11890 Woodruff Ave, Downey 90241 | (562) 803-6040 |
| Stereo Cell 9112 Firestone Blvd, Downey 90241 | (562) 622-0109 |
| Sun Heat Reflections 7707 Firestone Blvd, Downey 90241 | (562) 806-2259 |
| First Class Car Audio 8856 Rosecrans Ave # A, Downey 90242 | (562) 633-5418 |
| First Class Glass Tint 8856 Rosecrans Ave, Downey 90242 | (562) 531-3252 |