Hi all,
I am new to this forum and am hoping someone might be able to help, a few days ago the sub woofer started popping on ignition and then 2 days later the battery was flat and wouldn't start.

I charged it up and started to poke around and found a solution for the sub woofer that involved unplugging it starting, switching it off and plugging it back in. Sub woofer problem solved, but the battery is still being drained when parked.

I pulled all of the fuses and found the BTN fuse is the guilty party...

The battery in it was on its way out and needed changing but this underlining problem is still persistent.
I noticed, on the bonnet catch in the engine bay there is a switch which isn't plugged into the harness and I can not locate a connector to plug it into.
I would like to have a look over a wiring schematic for this model of car but I haven't found one.

Has anyone had similar issues.

Thanks in advance.

The car is a 2007 Mazda 3 SP23 Australian model vin JM0BK103200377340