framostan laid out some good options if you want to avoid having to do too much soldering. We offer quite a few options to convert from the connector on something like the Mega Pro Mini Connector cable or others like it. That specific cable was intended to plug into the connectors on the retired Mega Pro Mini
if you want an idea of what type of connector that plugs into. We carry a couple other varieties of that type of JST-PH cable if you wanted to use something like that.
Another option that might work here if you are comfortable doing some through-hole soldering would be to use a protoboard/perfboard
on "End A" to connect everything on a single board and then either solder wires and run them to your Arduino, or if you want something easily removable, you could solder male headers
and then run M/F jumper wires from that connector to your Arduino. If you are not familiar with how to wire a circuit on a protoboard, you could use something like this Solder-able Breadboard
which has each 5-pin row netted together instead of your standard perfboard where you need to manually create your trace like this tutorial
kind of demonstrates. That will allow you to have the wire from your LED and sound circuits go into one pin on the row and back out via a header or wire on another pin on that same row. If you have never used a breadboard before, this guide
is a good crash course on how they work and how could use one of those or the solderable breadboards to create your circuit.
If you want to browse, we have a wide variety of different types of jumper wires, hook-up wire or connectors you can browse through in our Wire Category
and Connector Category
. Both of those are pretty large categories so it might be hard to find exactly what you are looking for but the "Subcategories" listed at the top of each page might help point you to a specific category like Polarized Connectors
I hope this is not too overwhelming and gives you some good options to get started with this project. If you have any follow-up questions about these wires, connectors or other boards, let us know and we would be happy to help.