Weird key changes BK9

Strange stuff is happening with my IPad and BK9. I do a solo act and rotate between the BK9 and DJing on the IPAd. The Ipad along with an ITouch are plugged into an IRig mixer then the audio is sent to the BK9. That way I cna contol everything, keyboard, vocals, and DJ stuff from the BK9 and have only one output to my PA to deal with.
Heres the weird thing. No midi cables at all in the setup but when I choose a Style or SMF to play and press the data wheel to select it while I'm DJing a song it changes the key of the song in playback. Only audio connections in the setup Wha --??????
I'd also like to learn how to use the IPad to change settings on the BK9 but I have to figure these "ghost" changes first.
Any thoughts ??

This is why I use a Laptop & a Mixer with my KB,.....all separate controls of each device.
Ask Uncle Dave he uses that fancy iPad, iRig stuff..