Wire connector idea's

[daplatapus]

So I just finished building a LED fixture for a friend. It has 2 - 12" heatsinks both mounted on their own pocket door tracks and wheels. I used one of these to hook up each fixture:


I mounted it to the under side of the hood and wired each fixture to it. But I'm worried that as the heatsinks are moved back and forth, the wires will weaken and either pull out of the terminal strip or break. Is there anything out there that you can think of that I can use that would be similar to a ribbon strip connector that I can use to plug these fixtures to?