407 sw sound system

Hi guys. I am not satisfied with the speakers of my 407 Sw. Installing 2 sets of components or 1 set of components for the front doors and a quality oval speaker on the rear doors. I am considering supporting them with my 4 channel amplifier in Mg Audio 3200 Watt. I would appreciate if you help with your valuable ideas or advice. Thanks in advance.

You can buy jbl or pioneer ..

I have a cadence component set in my mind. JBL is good in components, but they do not recommend pioners. I would appreciate if anybody who makes sound system application to 407 people transfer their experiences. Thanks.