2008 Prius New Stereo

I just put a pioneer mvh390 in mine.
I wired the radio direct from the harness.
The only piece from the mounting kit i used was the faceplate trim.
I also wired in a small kicker 4 channel amp and an audiopipe apmi 2000 and a pair of skar audio 8's.
I got rid of all the jbl "premium " sound. I have been using the stock jbl tweeters as i havent got around to installing the rest of my components. Not impressed at all with the stock tweeters.
It was a pain to find the pinout of the radio.
Sound deadening is next on my list, and definitly has to help.
Im running a regular 12v group 51 battery.
The difference is amazing. I considered trying to use the stock head unit, but I am extremely happy i didnt.
I used the trim piece to mount a switch so my son can watch dvds, and am in the process of wiring a switch and some diodes so i can turn on my aftermarket backup camera at will without turning on the reverse lights.

 

Also to note, i mounted my midrange amp under the passenger seat in place of the jbl amp. I ran new wire to the front speakers, but i personally felt the stock wire was ok for the rear speakers and tapped into that. The rear doors use a molex plug mounted on the chassis and the wires from the door plug into that. I didnt feel like messing with working around that.