I have a '97 CL. The previous owner installed a pioneer deck, and there's a hight pitched hum that comes from the speakers whenever the car is running, but no hum when the engine is off. I took a look at the back of the deck, and the remote wire from the deck goes into the power antenna wire on the car harness, but when i disconnect these wires I get no sound from the speakers... The only other wires comming out of the harness are the orange and white illumination wire and the yellow and black cell phone attenuator wire, both of which are not hooked up to anything... Any ideas out there? Any help would be appreciated. -Shervin

 

There should be a antenna wire.. Not only a remote wire..