I just brought the attachment home and now I need to figure out how to plumb it to the crawler, but I'm inexperienced and haven't been able to find exactly the answer I'm looking for from the forum archives.
The back of my crawler looks like this:

And these are the backhoe connections:

My question is how to connect the hoe hoses to the crawler.
I see a large hose running from the pump on the right side of the crawler, underneath and to the front where it connects to another device (another pump?)
Is the large hose in the back the one I need to tap into? Do I take the hose to be cut in two and have connectors that mate to the hoe put on the new ends?