Troll Master model TM208DPRO3. It's the one that will also control Panther Electro-Steer units.
Works on 2003 - 2010 9.9 & 15 hp Johnson, Evinrude, & Suzuki Outboards. Removed from a 2006 Johnson 9.9.
I don't troll that much anymore and took it off because I was considering selling the motor.
It works perfectly. All the main parts are in the box, may be missing small common hardware, ie: screws, washers, etc.
Here's the installation instructions: https://96bda424cfcc34d9dd1a-0a7f10f87519dba22d2dbc6233a731e5.ssl.cf2.rackcdn.com/trollmasters/installation-guides/TM208D_pdf_(1).pdf
$225.00 PP f/f TYD in US 48