It's not Radio Shack any more, it's Cell Phone Shack now. Read thru this Tony and if you have any more questions give me a PM as this is part of what I did for about 20 years. Proper mounting/grounding of the antenna and tuning the SWR will do the most for the radio.
Just like proper tuning of your vehicle.
To answer one of your questions, big difference in coaxes between tv and CB, CB coax has copper insides and has the proper OHM value for CB and Ham radios. TV coax usually has clad with alum. insides and a different OHM value.
Do not have your radio tuned up until the antenna is properly taken care of. Check out these links;
How to Install a CB Radio
How to Install a CB Antenna
How to Tune a CB Antenna
http://www.scrapmetalforum.com/scrap...-antennas.html
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