Key stuck in Ignition - how to build a fuse toggle
 

I read posts here about this problem (though none of the photos were visible). The dealer quoted me $800 to fix the faulty switch in the steering column or transmission or whatever. Ain't gonna happen. Seems to me that the easiest fix is to put a toggle switch on the hazard/turn signal 10amp fuse. Has anyone done anything like this? What would I need to do it without blowing myself and my car up? Thanks. Since this is a non-MPV specific question, I may cross post if needed).