Fitting a Garmin Reverse Parking Camera

[fiestalux]

Hi fellow Fiesta fans,

I have a an Ecoboost 2014 model without any reversing cameras, in my quest to save money I didn't buy many options. Anyway. I wondered if anyone else here has had experience of adding or fitting the Garmin reverse parking camera on the link below? Also is it actually any good? The reviews seem generally positive.

Garmin Reverse Parking Camera

My car is still under warranty, therefore if I asked a dealer to add this would it still void the car warranty? Assuming they would actually do it and not want to sell me the Ford stuff instead.

Cheers,

Rod