The internal automatic antenna tuner can be added to any Omni-VII that does not have the autotuner already installed as a user-installable kit. The kit includes a completed circuit board, all necessary cables, and illustrated instructions. The AT588K is a no soldering required installation
Posted by Douglas Tabor on 12th Aug 2013
After finding out that this was the new, improved board (layout and numbering was not consistent with directions), the install was almost trivial - only issue I had was getting the top cover back where it belonged (the fit was quite tight). Now that it's installed, it has made operating MUCH easier.
Posted by KR0K Larry on 28th Oct 2012
I purchased my Omni VI in June of 2012. I did not get the internal tuner. I decided to add the tuner, and found that the instructions were well written with color photos making it easy to install. The radio covers need to be removed, and a shield removed in remounted with the tuner. 2 mini coax connections and 1 6 pin cable are the conections to the radio. It tunes quickly and quietly,easy operation. It works well on all bands and is a good addition to a great radio