• I'm trying to understand car stereo stuff, which I've never ever looked at before, so wanted to sanity check this.

    I have the "hifi" option in the car, which means that I have a Nokia M490 amplifier running six speakers, two units in the dash which each have a four inch mid-range and a 1 inch treble, a 5.25 inch unit in each door that is a woofer (note - not a sub), and then two units in the rear which are 4 inch mid-range again. The amp is 6x40W.

    There's an optional Bose subwoofer for these cars which fits in the passenger footwell, and has it's own amplifier - I ordered one from a breakers to take a look at it/see if I could use it.

    As the sub has it's own amp I had presumed that it would be run from the head unit, but looking at the wiring diagram that's not looking possible:

    So I am already way beyond my competence here. Wire the sub to the same circuit as the woofers, I presume?

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