wide-angle lens for 7950 rear

[sejtam]

Anyone know whether there is a (3rd party) wide-angle lens that can impove the angle on the rear camera of the 7950?

 

[Calgary Dash Camera - Robert]

The rear is all ready a 130 Degree wide angle lens, so I doubt there is any after market accessories that would make this even wider.
You might be able to try a fish eye lens add on for smart phones. such as the one below
3 in1 Fish Eye+ Wide Angle + Macro Camera Clip-on Lens for iPhone 6/ Plus/ 5S/ 5
https://www.ebay.com/itm/111809248092