Installing a DSP

[albertH]

Hi guys! I'm really confused how to install a DSP in a Volvo. From what I know, there's a cable connecting the "radio" (I mean the front console) to the Amp and then the Amp to the speakers. Is it only the audio signal coming to the Amp? Where on that path can I install a DSP, is it between the "radio" and Amp or Amp and speakers? I'm really clueless.
In case there's an option: is it possible to replace the stock volvo amp with something different or does it require a complete reconfig of the Software?
Thanks in advance fellow Volvo owners!

[sid3waz3]

There is a German company that makes a plug and play upgraded amp for the v60. Dm if you are still looking