Hilda Crossley
Member
- Location
- Vancouver
- Car
- 2003 FX45
-
- You CAN tap directly into the wires after the HU as they are a Low Level signal. Since most people like their amps in the trunk, it is more convenient to tap the Low Level inputs after the initial amp and before the sub amp in the trunk. The correct unprocessed wires are here and you will receive a flat signal unprocessed.. There really is no reason to run an RCA wire from behind the HU all the way to the trunk or under some seats. Just use the small white and small black before the sub.
I realize this thread is old as hell, but I'm in the process of an install so it"s all fresh to me.
Anyway, for anyone coming across this in the future, the aforementioned wires run from the head unit to the amp in the trunk. You don't need to do anything anywhere near the head unit. You just peel back the loom on the harness going to the big Bose amp right there in the trunk, and tap them before they ever hit the amp.
Also, for a first gen '03, the above wire colors are absolutely not correct. You're looking for the bigger of the two connectors. White is front left positive, black is front left negative. Start there. Then, on that same row of wires find the Green (front right positive) and Yellow (front right negative).
Make sure you're on the same level as the black and white wires, because there are another pair of green and yellow ones on the bottom row. That threw me for a loop, so I got out a test speaker and probed the connector with it while fading to a single corner at a time to determine for sure what was what.
I didn't tap the rears because the rear door and pillar speakers suck ass and are pretty much unnecessary from an audiophile point of view, so I prefer to fade heavily to the front. (Your ears face forward, after all) Problem is, fading forward kills the stock sub volume.
Do what ya like, but that's my .02. Hopefully it helps someone in the future.
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