Moon & Tunes RCA line out to factory amp?? Halp!

[Arden]

This is my first post, great forums! I've spend the last two days reading every thread I can find on Moon and Tunes head unit installs. We just got a fusion orange 2004 M&T Vibe. The stock radio has a bad display, so I am putting in my sony cdx-gt500 head unit. I've done numerous cd player installs, but never one with a factory amp.I've spliced the RCA line level outs for the speakers directly to the harness adapter. I do get radio (though a bit quiet) but I have very loud click or pop sound whenever I change a cd player setting, source button, etc. I read another post where someone had the same problem. The answer seems to be to get a Scosche line level convertor, or a PAC-OEM2... which looks to be about the same thing.But I can't find anything on going from my RCA out to the scosche or PAC-OEM! Both of these seem to be intended for powered speaker lines to be converted to line level power. I can't find any information on going from my RCA to one of these converters, or whatever I need to make this work.Anyone have any help on a snowy day?

[jwalcik]

I went through this when I replaced the stock head unit in my 2005. I forget exactly why (I'm sure someone else will come along and explain), but using the RCA preamp outputs on your head unit isn't going to work. You're going to need something like PAC-OEM2 adapter. It has four input wires that you'll connect to the harness coming out of the head unit and four output wires that you will connect on the side of the harness that connects to the car. In the middle, the box has four screws that you can use to "turn down" the volume of the sound coming out of the head unit.

[Arden]

Well, I tried the scosche, and it did not work using RCA pre outs. So, I just used the amplified speaker outs to the scosche like others here have done.I still wonder if you can get those RCA outs to work?

[audiovibe]

I don't think the factory AMP will take a low level input, you probably need the higher voltage generated by the speaker outputs to drive the factory amp. Now if we had a Bose amp there would be an adapter to feed the low level signal to the amp. You can probably get away with using a line driver such as http://pac-audio.com/productDe...ID=28to boost the RCA signal but by the time you spend $100 on two of these it will be wasted money as you wont benefit anything from it using the stock amp.Aron