So a while back i installed a pionerr Double din(avh2500bt) and i love it. i have my backup camera and everything. good solid unit. but I have the stock bose system in my car and i bought the adapter so i could use the factory harness on my car. I have a alternator whine that is constantly coming though my speakers, it is always there but i can drown it out by turning up my music. as i am driving, if i turn down the volume, i can hear the hissing getting louder and then quieter again, it is constantly changing pitch from faint to louder.I have installed a ground loop isolator and that didnt work and i tried regrounding it straight to the amp and still nothing. any body have any ideas? i have read online that i am getting the whine cuz i have the bose system but im just stuck and dont wanna put up with it anymore. help??