I just put a Pioneer AVH-1440NEX head unit in my '06 Limited to get CarPlay and a backup camera. Most things work well, but a few seconds after I turn the key on (and the head unit powers up) the sub "thumps" once--kind of like when you plug something into an amp that is already on. I'm assuming this has to do with the timing of the sub amp turning on. I used the "system control" wire (blue/white) going to what I believe is the amp's "power on" signal.
If I connect the amp's "power on" to the switched +12V instead, so that it should turn on as soon as I turn the key on, do you think I would get rid of the "thump?"
It didn't have this problem with the stock head unit.
If I connect the amp's "power on" to the switched +12V instead, so that it should turn on as soon as I turn the key on, do you think I would get rid of the "thump?"
It didn't have this problem with the stock head unit.