I'm not a producer, so my mod is just a kind of hobby..
I had to do it myself and glad to help with it someone who interested.
If anybody have some soldering skill and have a microscope (lenses) or good eyes it is possible to connect my plate into your own X5L by yourself. You just need:
1. Totally reassemble the unit,
2. Solder I2S bus from general plate with 4 thin wires to the aleXmod plate,
3. Solder 2 more thick wires to the battery, 1 to the turn ON high signal
4. Desolder mini jack from original plate and solder 3 wires of output to it.
5. Assemble the unit back
I guaranteed that assembled plate will be free of malfunction. It'll be tested and running for warming at least 48hrs.
Or, I forgot, before doing these steps you must unconnect original HDD and connect CF card instead of it via special connector (doing flash-mod) and install the rockbox software.
If you strong enough it will be you last trick and step into the portable high end league
Unfortunately, right now I'm searching for the TPS63700DRC chips to complete the last 4 plates of aleXmod. I hope I'll receive it at the end of October.
Stay tuned!