Kit: MX648, YouChoos SugarStrand7 speaker, SACC16 with 3x 330uF Tantalums

We expected this model to be tight on space, but in fact there is enough room in the boiler (with the 8pin DCC socket removed) to get a good level of kit.

Body off, reveals the 8pin socket assembly.

Strip off the socket and file down the platform to create the most possible space.

We also decide to fit a firebox glow light, for which we remove the cab interior, which is solid metal, and create a groove to take the 2 wires - pretty straight-forward because we can get this part out of the model to work on in isolation.

Next we put together a small stay-alive, which is the SACC16 board populated with 3x 330uF Tantalums.

Now we see all of the kit, wired up and ready to fit. The decoder has had unwanted wires removed, and re-covered in Kapton tape to make it thinner, and we have attached a YouChoos SugarStrand7 speaker (25x9x7mm) which is noticeably better than a standard 15x11 SugarCube7 with excellent range of frequencies.

Now just a question of packing the kit neatly in, attaching up the firebox glow wires, pickups and motor connections - we've used the space well, but even so it fits comfortably without having to force anything together.

Neatly back together and performing very nicely...

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.