Hi Folks,
I know that the 2-function DCC Concepts ZN6D (at £22.95) will accept a stay-alive (indeed it is packaged with a small stay-alive) but I was wondering if the following decoders would accept a stay-alive and if so, how easy they are to fit (I'm assuming that it is highly likely that some soldering to the decoder's motherboard is required).
Hornby 4-function decoder R8249 (at £15.50)
Bachmann 4-function decoder 36-566 (at £15.50)
Gaugemaster 4-function DCC27 Omni decoder (