I had just bought a 2002 Mitsubishi diamante LS from a friend of mine but before I bought it my friends daughter had taken the entire Auto system out & the antenna got broke off well we finally got the stereo & amp installed but it sounds like there's some wires that our crossed because when you're listening to it there's a whistling sounds that comes from the rear of the car I just need to know if the system's installed right & how to install another antenna
My car has 100000 miles.
My car has an automatic transmission.
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