Amazon has the AuKing 2.7" LCD 1080p Car Dashcam DVR for $50 - 50% off coupon (clip coupon) = $25 with free shipping.
eBay has the Rocketfish 7-Outlet 6-USB Surge Protector Strip (RF-HTS4218) for $36 with free shipping. Retail price: $100.
Amazon has the Auto-Vox W1 Wireless Backup Camera Kit for $95 - $27 off with coupon DJEWN4O2 = $68 with free shipping. Features 4.3" LCD monitor with 360° rotation bracket, IP68 water-resistant backup camera with 6 LEDs, IP67 water-resistant transmitter with 328-foot range, car charger.
Has good Amazon Reviews.