Recently I’ve noticed the gear shift not be in the gear I selected, eg if I pop into neutral from park, it might go to reverse, and if i want first gear low it will show 2. If it reposition a bit the gear selects. Is this likely to be an adjustment or the electronics thing on the side?
Most likely the cable is stiff or needs adjustment. I've driven a number of cars where the gear shift is much stiffer than on both mine suggesting that a stiff cable isn't unknown. Does the light next to the gear lever show the position the lever is in or the gear you are in?
The light shows the gear rather than the selected position
Is there any slack on the lever? The fact that the lights shows correctly says that the gearbox and the XYZ switch are in sync and it is the lever that isn't. If you don't have any slack, then the cable needs to be adjusted.
No slack. It’s quite stiff to be honest. Oh well another job next time I’m on my back!