Single Decoder in Bachmann Spectrum DDA40X?

[Tom]

I just picked up a pair of Super Detailed UP DDA40X's from Bachmann (SPectrum). I would like to add LED lights (including replacing the strobe on the roof). I was told I could put a single decoder in to run both motors in each unit, IF the motors only put out so many amps. I am an electrical IDIOT. I can barely change a household light bulb. I mean, I seriously SUCK at anything electrical, but I am good with directions, so, I am confident I can handle it with the assistance of the patient folks here at the Gauge. I know Deano has one of these, how did you install DCC in yours Deano? I would like to eventually do sound in them as well, has anyone ever attempted that?

Thanks in advance for any help!