^^ Tee hee. :lol:
Like others have said if you want both to work you need the switchbox from Mazda (p/n and price in the thread John linked). It basically allows both modules to plug into the box, and then the box plugs into the stereo. Both modules use the same port, so that's why they can't be plugged in at the same time.
As this is a very well covered topic I'll go ahead and close this thread.
:closed:
:icspots: