Yamaha DTXpress/DTXplorer/DTXtreme

Hey everyone.  I'm a new DTXpress III owner and new to this group. 
I'm 
enjoying the kit as well as reading through the different posts.  
Here's my quick question...

Is it possible to connect the module to a typical stereo 
amplifier/reciever and speaker setup (via the aux in RCA plugs on the 
stereo)? I know I won't get much volume; I'm just looking to be able
to 
occasionally hear the set without having to use headphones. Looks
like 
it could be done with a 1/4" plug-->RCA plug cable.  Would I need two 
mono setups like this, one for each channel? Is there potential
damage 
to the module or stereo doing this?  Thanks in advance.

Gregg