Simple stereo amp power connection?

What's the best power connection technique for a aftermarket amp going into a 2011 Prius?

I'm doing head unit, all speakers, and amp.

Also, pull the main 12v power before starting, right?

Thanks All!

 

Perfect. I thought it was that simple but unsure of the connection point. Thant helps me a ton!
Yes, amp is going in the back so I'll do a short link to the battery and keep the ground as short as possible.
Thank you!

 

I'm sorry that I'm not exactly clear. I'm very handy but not up to speed on the Prius.

So I hear you, don't connect the amp power cable (yes I have a proper sized Alpine amp cable w / inline fuse) to the starting battery.

This is where I'm clueless. So do I follow the positive battery cable from the starting battery and I will find a connection point between the Toyota e-car battery and the starting battery? It's kind of buried but I hear you about integrating it into the the charging system. It's a 2011 and if I just dig will I find it?

Thanks and sorry for the hassle. Also I can find a stero wiring diagram anywhere. Need to sort out two of the four plugs from the factory stereo.
Thanks!

 

ROGER- Sorry for the previous note. I got it. There is only the accessory terminal post off the positive of the starter battery. There's nothing else there so I guess that's what you meant. Sorry. Also, I'll just buy and download the Toyota diagram. THX!