On 13/11/2019 20:14, Brian Gaff (Sofa) wrote:
I'd think that renewing the whole run was the safest bet, rather than
joining it, but yes, maybe go wireless, but I do have some reservations
about those from houses I've visited where they only work in some places or
stop working for no apparent reason. Bit of a black art radio in this world
of interference and congested bands.
Brian

Not being an electrician but I would extend the wiring and give it a go
if it doesnt work then just unextend it back to the original.