I recently replaced my factory stereo with an aftermarket cd player. I bought th wire harness and all and now when i use my left blinker (which blinks really fast, so i think one of my bulbs is going out) the radio flashes to the same frequency. but i have noticed that it doesnt do it all the time, or when you step on the gas it will stop. Any suggestion as to what it may be and how to resolve it.