Hi guys.I am installing sub in my Octavia on bolero head unit.Could someone tell me where i can connect remote cable for amp?

Any switched live ought to do it, obviously the standard stereo doesn't have a ready output for one of those. I guess the easiest location to take one from is going to be the cabin fuse box.

I did conecected to fuse box

What circuit did you connect it to?

There where few empty spaces if interrsted will tell you which one exactly tomorrow.Mine is powering up and turning off on key now

Position 40 in the fuse box is a good ignition live source

That could be the one as mine is somwhere there aswell