As per the title, who has installed a reverse camera into an E53 themselves?

My vehicle is equipped with the 602 option (widescreen monitor and TV tuner (digital)), and my wife would like a reverse camera fitted.

So who's done one themselves - using BMW or equivalent parts? Would you do it again? Or was it a shit of a job for which you needed double jointed elbows and hands the size of a 5 year old?

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Cheers,

Anthony