Deh-x6500bt
 

okay so I bought this deck from best buy brand new in the box. took it get installed about a month ago, and worked fine up until a couple days ago I ran over a nice little bump in the road, now it makes this high pitch noise, on all sources.. when Im driving but when I come to a stop or the car is jerked the pitch stops but as soon as I start taking off again it comes back.. The only other way to make it stop is to turn the volume all the way down or up loud enough where the music is louder than the pitch.. it sounds like there is something loose touching something else inside the deck.. either way its annoying and makes me want to listen to just my phone which sucks because I have this brand new deck that I want to enjoy but can't.. any help or input would be greatly appreciated thank you and the specs are as follows
Car: 2003 Mitsubishi Lancer (Manual)
Deck: Pioneer DEH-X6500BT
Phone: Iphone