Badger suppressor?

[Badgerman]

Could someone tell me the reason for this suppressor please?

 

[Lancs Lad]

Suppressors remove spikes and high voltages etc that can kill electronics..

I'll admit though title had me thinking of silent badger removal devices🫣

 

[JD450A]

Makes the radio sound better

 

[Left hooker]

Makes the radio sound better

This or else you can hear the rpm the alternator is spinning