Adding an amplifier to 2016 Expedition Limited with Sony

[68lemans462]

I have a 2016 expy with sony system. I'm adding an amp/sub and trying to find the best place to tap into the high level inputs for my amp. I believe I just need a pair of speaker wires from left and right channel. Can someone explain the best place to tap into the speaker wires with this system? Thanks

 

[timo482]

talk to crutchfield.. the sony system has a factory amp and it has noise cancellation .. soooo.. you cant change anything and have it work without a complete plan.. even speakers have to be compatible to not just make it all quit. ... sigh..