Auto-Vox via Amazon offers its Auto-Vox M1 Backup Camera Kit for $49.99. Coupon code "MS5RS7JE" knocks that to $32.99. With free shipping, that's tied with our October mention and the lowest price we could find today by $27. It features a 4.3" LCD monitor, IP68 waterproof camera with 170° field-of-view and night vision, and 1-wire installation. Deal ends December 2.