Mic issues/Buying a new radio

I have a current issue with my Cobra radio. It's a model 29 with the digital front. I purchased an astatic and a roadking mic, thinking it would be a better mic. Noone can seem to hear me when using one of those 2 even with the mic turned up on the radio. They say I'm far far away and they can barely hear me, that's truck to truck also. I plugged in the stock mic and haven't had any problems since. Is there any suggestions out there on what happened or is my equipment defective? I was told to buy another radio also, any suggestions there? Most of my fellow drivers prefer Connex or Galaxy...

 

Yep I had em close when transmitting only response was that my voice was deep and far away. I returned the Astatic, but I have the Roadking at home. With the RK people said it was super deep voice wise and not clear at all. I hooked up the stock one and people were able to hear me loud and clear. I have the 29 LX, it's def not a bluetooth model. I wonder if for some reason I just purchased 2 duds, or is it something else. So far no complaints with the stock stuff. I have it run through a cheapo coax from Love's and a K40 trucker antenna. What yall think?