Question for Audi Concert & aftermarket amp

[toni_yanchev]

Hello guys.Thanks for great forum.I'm from Bulgaria and i'm have Audi A3 8l Facelift 2001. I have a question for instaling aftermarket amp on OEM Audi Concert head unit.My car don't have original amp and sub for that matter.May be someone before me put them out ( I'm not the first owner).
So my question is : Where to connect amp ? Can I connect RCA's for the amp to RF & RF low level outputs ? Will it work so ?

http://img853.imageshack.us/img853/2008/7xy5.jpg

Sorry for my bad english.
Best regards from Bulgaria.

[dcc236]

Yes. Just remember Audi uses common grounds on its head units for low level outputs.
If the original wiring /system is in place, you can pick up everything you need at the left rear speaker. There is a small amp attached to the left rear speaker.

[Christian@enfig]

You can use those but the signal is really high. I would use a high to low converter as well.