Sorry for bringing up this thread..
i have a few inquiries..
If i use a power inverter to power the household appliance in my car.. do i need a fuse?or just plug n play?

2nd, let's say i use a power inverter to power my pc speakers in my car.. the relay shud be added to the power cable right as posted in the first thread.. where is the power cable?

i'm a little confused with the setup .. @2nd question.. or is it no need to add relay as the power inverter will off when the engine off?