| Business | Phone |
| Mobile Electronics Inc 6611 Crossfield Rd, Columbia 29206 | (803) 738-0270 |
| Norton's Stereo 3326 Two Notch Rd, Columbia 29204 | (803) 786-2221 |
| Rogers Stereo Inc 5411 Two Notch Rd, Columbia 29204 | (803) 754-8900 |
| Ultimate Audio 602 Bush River Rd, Columbia 29210 | (803) 798-1231 |