Thank you for the speedy replies. I obviously missed these threads. I ended up hard wiring the decoder to the loco and it’s working. It’s a lovely loco. Great detail and I quite like the new tender connector Hornby are using. Just a shame my assumption that the set up of this loco was going to be a quick plug and play process was wrong. A bit of a bad mark for a £250 loco where major elements of the kit a promoted incorrectly. I’ve already pre-ordered the lner p2 Lord President 21 pin and already bought a 21 pin sound decoder for it. The website still says it’s a 21pin decoder for the P2. I’m hoping Hornby have learnt from their mistake, and that I can be confident in assuming their future products reflect the key specs as documented and advertised. Thanks again for the replies. Cheers, Dan