Hi
If Im doing the install for someone I cut the ears off with a pair of pliers, they snap off quite easily and it wont invalidate the warranty, it evens says this on the description on the website that the ears have to be removed prior to fitment.
The CANBUS box is used for the BMW E46 as it has a digital system for the SWC, this isnt required on the R75 or ZT as they are an analogue wired with resistance system.
Key 1 wire from the stereo loom to the blue / purple wire on the cars loom and a black ground wire to the blue / orange wire on the cars loom then programme the SWC buttons on the stereo via the SWC app.
Cheers
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