I had LED lights put on the front with the harnesses and I have a grounding problem with the radio. I can take the LED light harness off the head light and the radio works.

SO where do I start ?

Any help would be very appreciated.

 

I would find a new power source. I power mine right from the battery

 

what do you mean grounding problem- does it work or it is noisy?

if noisy is it the same am/fm/cd ?

lots of stuff sold at swap meets or ebay is electrically junk.
much of the stuff is not DOT approved for a reason

it may send out radio frequency or electromagnetic fields that not only may screw with the radio, but can screw up the signals to and from the ECM.

mike