Buzzed

Just put my DX 959 into my truck (05 International 9200). Radio was checked by a shop and sounds good on their setup. I have new coax running to a new Wilson 2000 antenna (not tuned yet). Also, have new Ranger Mic.

The issue I'm having is when I key the mic there is a fairly loud buzz. What might be the problem? Antenna not tuned? Bad ground? Something else?

 

Nobody. The radio hasn't been hooked up in 4+ years. So, I took it in to the CB shop in Wytheville. The fella just hooked it into his system to see if it was working properly. Worked great. Sounded real good too. Nothing was opened or adjusted. Radio never left my sight either. Afterwards, I hooked it up in my truck. And it buzzed.

 

If it matters, power is coming from the hot post by the fuse panel. Ground is to the fuse panel frame.

 

And what would that tell me?

 

I just figured out what the problem is. The problem is either the wiring to the external speaker or the speaker itself. Unplugged it and no buzz. So, will be investing in some new wiring and possibly a speaker in the near future. I'll start with wiring and see what that does. Both it, and the speaker, are original to the truck.