Since I am new to this C.B. thing I have a ton of questions. My first is… what’s the deal with dual antennas? Is there a benefit in using two? How would you hook up dual antennas to a C.B. I got a great deal on a new Uniden GrantXL. Is this a good one? I have a 1998 2 door explorer how would you recommend running the wires to the roof. I do not want to drill any holes and running cable through windows looks queer. Is there any factory holes already drilled that I can use to snake my cable through?