Fitting new decoders, speaker and power bank

[KPJunk]

Hi everyone, I admit that I am not good at handling small parts and always ask for Decoder fitting from the supplier whenever I buy new models .

I have been trying to fit a new decoder , powerbank and speaker to two class 43's . R3510 and R1230M ( Railroad ) , both came DCC Fitted .

Being larger models I thought these would be ok to fit the parts but am having great difficulty fitting it all in .

Are there any guides, links or videos to help me with me .

Any help would be greatly appreciated .

I have run both models without lights and body shell and delighted with the great performance

Keith

[M. Matthews]

It might be worth posting a couple of pictures of where you are at?

[KPJunk]

Thanks for suggestion , I have solved this now after one of my non modeller friends suggested a few things , which ere all common sense and i missed it all . New decoder , Speaker and power bank now happily running .