You do not even have to solder. You plug in the 10 pin connector and can use a wire nut to connect to the serial data from the motherboard. You remove the DCDR, transfer heat sink to CCM, remount and plug in connectors. Make Serial data connection. Should be good to go. Picture isi from the Polar Express TMCC/Cruise Conversion. Rear engine has CCM on the back. G
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