Atlas # 7675 Dash 8-40CW BNSF "H3 Repaint"

Can someone tell me how and what items i would need to make this DCC with sound?

BNSF Dash 8

If you can find one with sound, you might be able to swap the shells.

That or get a QSI-revolution type-A (Atlas lightboard-type) with the right sound files and a speaker. If I recall right, atlas silver and gold (with sound/DCC) usually use the same frame, so there might be a space for the speaker.

Edit; here’s one with sound for the same price:

http://cgi.ebay.com/Atlas-Gold-Series-HO-BNSF-H2-QSI-Sound_W0QQitemZ200309358789QQcmdZViewItemQQptZModel_RR_Trains?hash=item200309358789&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A50