Thumb Score: +8 Best Buy via eBay [ebay.com] has the Insignia 20W Vehicle Charger w/ 1 USB-C and 1 USB Port (Black) on sale for $6.49. Shipping is free. Best Buy [bestbuy.com] has the Insignia 20W Vehicle Charger w/ 1 USB-C and 1 USB Port (Black) on sale for $6.49. Select free store pickup where available; otherwise, shipping is free.