Originally Posted by JETsimple
How did you hook up the amp without an LOC? I thought you had to have one to put an amp onto the stock HU.
The JBL amp I used allows for high level (speaker level) inputs. It handles the duty of a LOC internally. This is not as good as a high end LOC like an LC2i but good enough for the signal for the subs. If I was going to amp the door & dash speakers I would definitely go for a separate LOC or signal sumer.