Where have all the car radios gone?

[boater sam]

Not much canbus on a 30 year old tractor! He doesn't need sat nav, a field is a field! Can you imagine canbus on a tractor steering wheel? Would it last a week?
He flails hedges, this beast has double wheels on one side and the arm and hydraulic flail on the other, 8 litre 6 cylinder engine.