I just got one of the new Altec-Lansing iM413 speaker docks. It works great with the Sansa Connect. The sound is great and the battery charging is excellent. I think this is a great speaker dock and works with Sansa Connect, C200, and E200 models.
The remote feature will forward/back songs on the C200 and E200 models, but doesn’t seem to have functionality for the Connect. The remote does function for volume control and FM tuning on the speaker dock.
Overall this is a very nice addition of quality external speakers, charger and FM ability for wherever you use your Sansa Connect, C200 or E200 models.