The audio output wire from the Baofeng UV-5R to my bike helmet headset adapter broke after a year and a half, far longer than I expected:

It’s the green one, over on the left, pulled out of the heatstink tubing that should have provided some strain relief, having broken at the solder joint to the resistor.
A quick & easy fix, after which I reapplied even more tape to hold everything in place.
Maybe it’ll last two years this time around …