Hope it's not to late to put my 2cents in. I have a 95 4R and the first mod i did to it was a cb and antenna. I have a uniden pc68 elite with a 4' cobra highgear antenna. Not a cheap setup but it was a gift. I have the cb itself mounted on the shifter. Down but the passenger side. My girlfriend is the main person that sits there and her being small it works out. and even when my bigger buddies ride there it's still out of the way. My mic is mounted on a clip under the clock ( reason for mounting there is a non working clock) Power cables run under the drivers side carpet and up and out the grommet then to the battery. As for the antenna, it is a 4' antenna so it has it's ups and downs. It is mounted with a 6 inch diameter magnet in the center of my roof. ex. Parking garages and garages are off limits with the antenna up. It does unscrew from the mount but it is easier to unstick it and just stick it back later. The cable runs down the frame of my passenger rear door through all the plastic and up and out the glovebox to the cb. Due to the fact it is so tall, i get great reception. i mean GREAT reception. it's very loud and clear with no popping or whistling.
All together i think my setup was about $230. $150 for the cb (which was tuned free when i bought it) and $80 for the antenna. Anyways hope this helped if you'd like can try and get some picks up for ya. Best of luck!!:cheers: