DealsBuy2015 offers the Pyle License Plate Mount Backup Camera, model no. PLCM10, for $16.99 with free shipping. That's the lowest total in-stock price we could find by $5, outside of the mentions below. This camera helps you see behind your car and features a 92° view, RCA 1.0 output, and 380 x 60 resolution.

A close price, Walmart has it for $17.99 with in-store pickup; Amazon charges the same for Prime members.