Help hooking up CB

I just hooked up my new radio on my truck and I cant pick up anyone on it. My buddies truck sits right next to mine and can talk for miles on a basic setup. I am using a General Lee cb and a monkey made antenna on a International Transtar. The mirror is coated and i am using a 4 bolt mirror mount. My buddy can hear me loud and clear sitting next to me and I can hear him with alot of squeel, but nothing from a little distance. Any tips I can check? I know im doing something wrong I am pretty new to this stuff.

 

Its brand new coax, and what exactly is the swr's?

 

someone was telling me that the mirror mount bracket has to be tight and solid grounded.. is this true?

 

alright ill try that in the morning then... also i just got off the phone with another driver and he said that between the atenna and the mount it should have a plastic peice between them, I forgot to install that part, would that cause it not to work right?

 

ten 4 driver.. thanks for all the info, ill try to wiggle the mount back and forth, put that plastic peice in, and tighten my mirror mount down in the morning and see what I come up with.. As long as I get it working decent by monday ill be fine. Ill probably stop by GI Joe's in Berea ky when i go through on thursday and let them double check everything for me, I just need to get it picking up at least a couple miles until then. thanks again for all the help.