Today I tested out my newly and expensively installed BC30 camera . It is extremely disappointing ,the picture is very dark and blurry even in bright daylight , so that objects you want to miss are very hard to see. There is too much fish eye wide angle distortion , an unnecessary amount . . It makes no difference how I adjust the Garmin satnav screen brightness , it shows the same dark vague picture . So far the only thing it works for is reversing into white lined parking bays , and that is only because the white lines show up against the general darkness . I tried it at night , and walls etc show up a bit better with the reversing lights reflecting off them . Having used a Toyota with factory fitted camera , I know what a backup camera is supposed to look like in action . Those cameras gain up the available light when it is low , just as a digital camera does ,- not so with Garmin . Plus they do not bend the view into a semicircle distorting your distances .
For what these things cost I think Garmin have swindled me , so be warned and find something better
I hope it is better than the BC20 was. Mine was poor quality and then stopped working just outside the warranty period. Garmin were a waste of time, they just wanted it sent back to them at a standard cost much higher than the value of a new one ... except they discontinued them.
My advice, send it back and get a full refund if you still can.
I looked at cameras for ages, and IMHO, the cheapo £40 Ebay ones take some beating, easy to fit, the monitor at 7inch is a bit in your face, but against the A pillar, it's acceptable, I fitted 3 in 3 vans from different sellers, all worked the same.
There are also various kits where you pick a camera and a screen, a little more expensive, but can be tailored to your own needs, some monitors will accept two feeds so you could do down and back.