[Richoh]

Hi guys,
I am installing a 4channel amp for my speakers. I was wondering if anyone can help me with where to connect the remote wire to. My car does have the factory premium amp in the boot which I am leaving to power the sub. Does anyone know if I can tap into any of those wires for the remote?
I would prefer that the amp can be on when the radio is operating wothout the key in the ignition if possible.

Thanks in advance for your help.