I know what you mean man, I REALLY didn't want to take it off. That's why after searching I found your thread and thought it'd be a piece of cake.
Unfortunately for me, and I speak for myself only, it was just way too difficult with it on.
I used this guide:
- and looked at it on my smartphone as I was taking off the pieces. Thankfully everything was snap off and snap on, and was much more intimidating sounding and looking than it really was.
What'd I'd be curious to know is how you managed to take off the OEM horn? That Submiods bracket did not fit under the latch where the bolt goes in without taking that little bastard off.