hey guys, so i have a kenwood head unit and i tried installing it without any harness. i wired everything correctly and i have power to the stereo but no sound coming out of the speakers. i have an rt with boston acoustics. I know if i get an amp bypass harness i can get the stocks to work, but im trying to use the stock amp and sub along with my amp and sub i bought. is there anything i can do that utilizes the stock amp along with my purchased ones (oh and when i play the stereo, the sub and amp i installed are working, just no sound from the stock speakers) please help me outt, ive had no music in my car for weeks and its killing me