I have a 2005 Crossfire SRT6. I upgraded the original Infinity head unit with a Power Acoustik cp-71. I love the radio because of the fit, apple carplay and the big improvement in sound. My question is for those of you that have done a similar upgrade. Some of you have mentioned that this particular unit takes advantage of the car’s amplifier and rear subwoofers. However, I haven’t had the same experience. Can anyone help explain maybe what I could’ve done wrong? TIA