Lipo connection question

[ReV:-O]

Hey guys,

I've got a MMM with a Y-harness that I previously used for my E-revo.
I now use it in my Hyper, and have bought a single lipo.

My question is, how should I hook it up to my MMM? The lipo has one dean on it, the MMM has two.

I tried getting a spare dean and solding up the end (to complete the circuit), but when I hooked it all up, the servo worked fine but the red light on the MMM just flashed, and there was no throttle. Is there like a 'soldered dean' that you can buy readymade?

Another thought is that I just make another Y-harness and connect them up, but this is just adding more wires which will drain more power from the lipos.

Here are some pics to try and show what I did







Sorry about the quality, and thanks for any help given!