My Santana is a 2004 and they used that system through the 2000-2009 era, but apparently converted to using mechanical discs in later years. There were problems with bleeding and adjustment and some tandem owners in my era converted their bikes to Avid bb7 mechanical discs.http://santanatandem.com/Library/Adjustable.pdf
The first item on page 2. The cable comes in from the left and the hydro hose goes out the right. Santana had a little welded attachment on the downtube right behind the steer tube and it was hydro the rest of the way back. Also the part that stuck out the top was a fluid reservoir and probably would not need to be that tall on something for a cross bike with much smaller caliper pucks. These things were made by Formula for Santana as far as I know. I just went out and looked at mine and it says Formula on it in red. I have an extra one of these that I bought as backup in case ours ever failed if you want to experiment. I would part with it for $150 which is way less than Santana sold them for.