The Nakamichi MB-X - 6 disc indash changer has selectable RCA voltage output.
Front rear and sub....1volt, 2 volts or 5 volts..

The unit you're looking at isn't really quality you would expect from Nakamichi.

Dang...1v... and thats at full volume!!!!!
You'll end up needing a line driver anyhow, step up a level or two and check out the one above.

 

Who in their right mind still uses archaic CD's?
Get a deck with a USB input and you can easily take your entire music collection with you.

 

I dont like mp3 quality, I still buy cds because of their top notch quality.

 

Just get a good encoder, that's all.