EU standards
You can purchase electric plugs online from stores such as The Home Depot and Lowes. Alternatively, you can also purchase these plugs from websites such as Grainger.
No it cant
Same as in the U.S. - 110 v. Electric plugs have the same shape too.
These are two-pole plugs for 220 V and 2,5 A.
The keyboard is an electric instrument. Pretty much instrument that plugs in is an electric instrument, with exceptions to the acoustic-electric guitar.
Yes, Bulgaria's currency is called the Lev.
Try to use Toyota speaker adapter plugs so you don't need to cut wires and mess the electric system up. You can get them from Ebay or Amazon.
3-pin
Yes. An acoustic-electric guitar plugs into an amplifier the same way a regular electric guitar does.
No spark plugs in a diesel.
Because you could have an electric shock....
There aren't any electrical connectors near the spark plugs on the 5.9L V8