I had a spare windshield so I put a "Boom Box" type radio on my Road King. It worked fine for two weeks now its cutting in and out. I plan on taking the box apart today to check the radio, connections, and speakers but I'd like to rule out the simple stuff first.

2003 Road King Classic - stock electrical system

I used the wiring provided with the Crazy Biker kit, its a Pioneer radio and speakers, and yes I do plan on checking head unit to speaker impedance and wiring tonight.

I connected the CONSTANT POWER and GROUND directly to the battery. I tagged off the 10 amp fuse on the left side marked for PURSUIT LIGHTS for the SWITCHED POWER SUPPLY. The switched power supply should only be a signal switch and shouldn't draw much in the way of amperage.

Is there a reason why the PURSUIT LIGHT system would be the culprit?
On a Road King Classic, what else is powered off the PURSUIT LIGHT fuse?
Any ideas outside of the head unit as to why its cutting out?

 

Oh, BTW...here's a photo of the set up.

 

Off hand, that type of radio system isn't normally good to use exposed to the weather. Humidity, rain, dust and vibration will play havoc with a system like that.

 

I have two windshields, this one is in the hall closet when the weather doesn't cooperate. I got this whole set-up second hand and plan on eventually replacing with a Marine head unit.