I've been having problems with my wipers, turn signal and radio. If I have my radio on and turn my signals on the radio shuts off completely...same for wipers, which also kill my turn signals.

I replaced my multifunction switch in the steering wheel and tried swapping out relays under the hood. Any other suggestions for where to look next?

 

Before I can help you figure this out, I need to know if this is a factory radio or aftermarket radio? Also, has the steering column ever been switched?

 

Radio was after market but worked for quite a while before problems started. In the process of trouble shooting I've removed the radio and all wiring harnesses and the problem still happens. I've owned the car for almost 4 years and nothing has happened with the column as far as I know.