Velmo dcc decoder install Mar 12, 2024 6:11:40 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by casey on Mar 12, 2024 6:11:40 GMT -5 My friend has completed the Dcc install into a Marklin A B A Uint using two velmo dcc decoder only issue was trimming 2mm from powered units roof for snug fit for the decoders