With various aspects of servicing, maintenance, including driver assisted features and vehicle monitoring. For our 1996 Rover 200 and the 04 ZR 120+
About features, and driver notifications on our MG-Rover Information Pages

Fitting the horns was a straight foreward swop, made easier with the front bumper out of the way, the old horn securing bracket was so corroded from where its located. This was then replaced with an alloy one that was supplied in the fitting kit.
Access to horns, was really, only to have the steering on full right lock, to pull back arch liner, but working in a tight space to do a proper job is always going to be difficult. So as other maintenance was to be included with fitting new horns, so the bumper was removed

Other jobs done included cleaning screen washer tank, bonnet locking mechanism greased, cable lightly oiled, and bulkhead located heater control rod, Also for cars with a manual choke.
Information is referenced only to our 1996 Rover 200 and 2004 ZR 120+