BACHMANN SPECTRUM # 84606 PETER WITT STREETCAR SOUND

[jackbreadman1]

I have ordered a Spectrum streetcar, which comes with a decoder and  it says sound ready.  I have read a few articles in this forum on adding a Digitrax soundbug to the existing decoder,  My question is would it be easier to remove the decoder and add a Digitrax SDH164D or a SDN144DS?  Won't the current decoder just unplug and then you purchase the decoder with sound and a 1.5" 9 prong plug to a 8 prong plug, plug it in and you would be done with it?  (also download the correct sounds into the decoder and purchase the correct size speaker)

Thanks.  Jack