Ron did a good job on the input. But can he make an output? Ron, I'd like to bypass my line level converter running into my amp. I've found that the converter rolls off some of my low end bass, not much, but noticeable. I'd love to have RCAs going directly from my stock HU to the amp. Is this even fathomable, let alone feasible?

 

Not knowing who Ron is...

You can definitely get the line level outputs from the HU to your amp. SiverKnight and others have posted the stock wiring harness diagram that tells you what wires to get into. One thing that is nice is all of the line level pairs are grouped together in the wiring (all 8 wires are wrapped together). You can even buy an aftermarket adaptor if you don't feel like cutting the factory wiring.

Do a search and ye shall find. G/L.

-- Nihil

PS. It's unlikely the speaker to line level converters have low-end roll-off... It's more likely the amp that's driving them. Tapping into the line-level from the HU will be a lot cleaner IMHO.