The side plates allow the installation of a clear cover that is intended to give protection to the delicate front panel.
Installation is easy. It takes less than 10mins and also comes with a Heat sink to help the PA transistors stay cooler for longer. I didn’t want to fit the heat sink at first – I thought it wouldn’t allow the radio to fit in the carry pouch. But as you will see the case I use was able to take both the radio and heat sink. To complete the installation you will need 10minutes of spare time, a screwdriver and a 10mm spanner.
If you own a KX3, use it out and about - this is a quick and simple upgrade you should seriously consider.