You're wiring a mono audio connection and don't want stray metal contacts shorting out against your chassis. This 3.5mm mono panel socket from Jaycar has built-in insulation, so you skip the extra shrink tubing or tape. Solder, mount, connect. One less thing to go wrong. $5, in stock
| brand | JAYCAR |
| connector_size | 3.5mm |
| channel | Mono |
| insulation | Insulated |
| mount_type | Panel mount |
| category | Electronics & Components > Cables & Connectors |