I am hoping that somebody here can help me out. I have been researching for weeks and am seriously confused.
I have a 2012 Lariat SCrew w/Sony and No Nav. I want to keep the stock head unit, upgrade door speakers and add an amp & sub.
My problem is that the factory HU (via the OEM Sony amp) rolls off at higher volumes to "protect" the *****ty speakers. I want a system that achieves balance at any volume (and doesn't cost a fortune).
I cannot figure out how to work around the OEM amp (without hacking, slashing and splicing) and, for simplicity, retain factory speaker wires. To make matters worse, I have stinking molex connections.
Can anyone tell me what the connections on the OEM amp (pictured) are?
Asking installers in my area has lead nowhere. They are willing to "do" it for me but refuse to give "free" advice.
You can't, the factory amp has a floating ground. You have to buy a new breakout plug or go get one that fits from a junk yard. What ever you do, do not cut the factory wiring harness to the head unit, its part of the computer system and the system monitors the head unit and steering system controls threw it.
You either save up and buy a complete system and install around it or read up on how the rewire around the factory amp and install a new one. Which requires the speakers to be rewired to ground at the head unit and not the chassis.
Why not hack the aftermarket harness and dip right into the lcq-1?
I don't understand the need to have the factory amp in the equation. But, if it is needed, just plug everything in like you have, but tap into the aftermarket harness for speakers only, leaving the factory amp plugged in, just not used.
For my setup (I don't have the Sony unit FWIW), I tapped into my Lockpick harness (I have the factory nav) and ran all new wiring from there to the amp and new wire from the amp to the doors (nightmare!). There's some pics floating in this forum (audio) on what I did with the molex connections.