I have an 08 EG Classic and mounted the J&M CB on the handlebar but instead of the JM antenna I bought the HD Ultra Classic antenna mount and whip in 08 and had the dealer install it on my beer box, just as the Ultras have it. The HD antenna lead wire connector had to be replaced with the JM type amphenol connector, no big deal, and the load coil (08's and earlier) was mounted in the beer box as like the Ultras factory install. This set-up works great and is cheaper than the dealer installing the HD add-on cb which in Canada was about $1100.00. Of course I can't run the CB sound through the speakers like the HD plug in and have to use my JM headset but if you want CB for less cost and a good system that looks original with the matching HD antenna mount on the rear, I recommend this way to go. Yes you can use the HD antenna with JM CB's.