I own a 2004 Cadillac Seville SLS, I went to a stereo shop and had my stock radio replaced with a Kenwood DPX300U so I can connect my ipod to my radio. After fully installed and driving back home, I noticed my sub woofer started to make a popping/clicking sound when volume turned up.
What could be wrong?
My original stock radio never made this popping/clicking noise,
and actually was able to go louder volume & louder bass then it does now. What happened?
Did they blow my speaker? Did they install something wrong? Wiring?