Originally Posted by Toyota Tech31
My question is: When I run the RCA's from behind the head unit, instead of running speaker wire to each door, can I run wire to the wire kit behind the head unit? If that makes sense?
Basically disconnect the speaker wires coming out of the unit that connect to the factory speaker wires and run speaker wires from those to the amp as my outputs? If this makes sense I would appreciate some advice, if not I can try to clarify a bit.
Traditionally, it goes like this (seems like you're already aware of this):
Head unit -> RCAs -> Amp -> Speaker wire -> Speakers
Did you replace all the speakers as well? If so, I would highly recommend running new speaker wire from the amp through to the doors.
That said, if I understand you correctly, you want to do this?
Amp -> new speaker wire to back of head unit -> connect to old speaker wire from stock speakers -> new speakers
I don't see anything technically wrong with that but I would recommend against it. I did my entire truck (the first time I ever did a full stereo upgrade) and found running wires through the doors fairly simple. It took some time but it wasn't too difficult.
Another note, this is assuming you had the stock stereo. If you had the JBL
unit, you'll have to run new speaker wire. Hope this helps and best of luck!