i put two neon lights in my 05 f-150 today ran the wire right from the batt. and grounded then to a seat bolt.it only does thatwhen the motor is running and the lights are on they interfere with the radio when i rev it up. but doesnot interfere withthe cd player(stock). does notinterfere when the key is on acc. not sure why.

 

sound like there is something wrong with wires. but something that make me consfuse is the radio is problem and the cd player is good. any other ideas?