uxcell DC 12V Truck Car Auto T10 W5W LED Bulb Light Wire May 08, 2018uxcell DC 12V Truck Car Auto T10 W5W LED Bulb Light Wire Harness Adapter 10 Pcs These connectors, all 12 that I put in, and I mean ALL of them have to be fiddled with constantly. The connection is really bad and need to be wiggled around all the time for a good connection. My advice would be to get some clear nail polish and a tube of graphite.4/5(15) 12 volt wire harness plug | eBay Find great deals on eBay for 12 volt wire harness plug. Shop with confidence. Skip to main content. eBay Logo: 20Pcs T10 Harness Plug Connector wiring sockets 168 194 2825 175 W5W 921. Brand New. $10. Save up to 5% when you buy more. Motorola Vehicle Charger Wiring Harness / Plug for 12 Volt Chargers Jedi Waris See more like this.