These are DCC Decoders that we have tried
Digi Traxx DH-123 PS	Train Control Systems (TCS) T1A Decoder plus T-1" Wire harness	ESU Lok 52690 LokPilot Basic DCC+DC, with wire harness 8-pin DCC plug - 3 function 54611 LokPilot V4.0 DCC decoder, with 8-pin plug - 4 function
Kapton Tape is recommended to tape wire and boards in place can be found at Uline, MSCdirect, or do a google search for a store Kapton Tape is made for circuit boards and fine electronics. Do not use black electrical tape. It traps heat and becomes sticky over time.	NMRA page of DCC Manufacturers http://www.cwrr.com/nmra/Manb-Elec.html