is the wiring for the oem subwoofer in every car? ie under the seat or does the subwoofer attach to the radio directly. if so is the low pass filter built into the head unit or the sub itself.
i am looking for a source for my aftermarket amp, and if there is already a low level imput under the seat then it should be easy.
anyone else running a sub off the factory head unit? where did you get your signal from?
The way the harness works is it goes between thw radio and the regular harness. You unplug the radio and then put that plug into the sub harness which then splits and goes to the sub and into the back of the radio. Hope this is not confusing.
Haha, they may not be great, but they're just what I wanted. I was able to get it in the Miata and it works just fine, and really fills in the bass that the system didn't have.
To each his own, but why waste your time? You're going through all that work to hook up a factory sub when you're going to have to duplicate effort when you upgrade.
I don't think it is a bad idea. I've had to work with what I had my whole existence. If you have an under the seat sub that isn't bad, you can always use it. Once you install it, it's not hard to upgrade later if you want.
Just my opinion.
Did you have to run power to it? I'm not sure how those subs work.
6 wires I had to tap into, all found on the back of the headunit:
Power/ground for both rear speaker wires,
12v power,
Ground,
So yes, you have to power it with 12 volts. I tapped into the headunit power and haven't blown any fuses yet. the sub and HU both have their own fuses so if something will blow it would be at the car's fuse block.
Sounds good. Normally when you deal with speakers for reference, they are known as +/-. If you say power/ground for each speaker, people get even more confused due to the number of power wires.
Keep an eye on it, I doubt it draws that much power, but without running a dedicated power line, you never know.
Personally I think it sounds pretty good, and I'm pretty picky (not about thumping bass, moreso about quality blend).
The miata is a small car so it doesn't take much power to get good volume. With the top down it's a little weak, but I can always turn it up. It's certainly better than before, and I wasn't willing to sacrifice what little space the car has. This was a good compromise.