Abrown3mtg

I'm installing a Remote Radar Detector/Laser Jammer setup in my car this week. I'm curious if anyone knows the radio mute wire location (hopefully at the front of the car vs the rear at the amp, although if necessary, I'll run one).

I'm thinking the mute would be nice so I can run the RD speaker at a lower volume yet not be concerned about hearing over music if it is playing at a moderate/loud volume, yet not be blaring when music is off/I'm on a phone call.

Thank you!