Can you power the new sub using the existing Sony Sub wiring harness? Or do you have to tap directly into the power invertor? I would like to still be able to use the receptacles in my truck and would like to stay away from disabling those.
it’s possible, but you’re only changing out a marginal subwoofer for a better subwoofer and you’re not sending anywhere near enough power to the new sub to exploit it. If you check the link in the original post, that’s how the mod started out, but users were less than satisfied with the results until an amp was added. you could still use some electrical outlets, it’s a 300w amp, and a 400w inverter and unless you’re at max volume, max gain on the amp, you should have plenty of room for at least one outlet in use, and if it’s only phone chargers, probably all of them.
BTW, this does not disable any of the plugs, we’re just tapping the 10 gauge power wire for the inverter.