I am converting my Athearn Genesis GP7s to Railpro's locomotive modules (previously Tsunami 2. The LEDs have to have resistors, but I don't know if they need the 1k Ohm 1/4w for 15mA LEDs or the 750 Ohm 1/2w for 20mA LEDs. Anyone know which LEDs they have? And therefore which resistors I need?