i got a close friend who is good with car audio.. he advised a product called Audio Control LC6 http://www.mobileaudiocontrol.com/produ ... t_Id=31215
i know they show discontinued but thats in the US, you can still get them from JB-HiFi as i did.. but they dont have them on display.. tell them you want to order 1 in, or if your in sydney i can just tell my friend to do it for you
Anyways back to the product, this unique product will accept two, four, or six channels of speaker-level signal from an amplifier or source unit and convert it to a high-quality, low-noise pre-amp signal. Therefore the LC6 will allow you to use your factory installed source unit and give you the ability to add a really good after-market amplifier and processor.
So in other words you can add this unit AFTER your stock amp but BEFORE any additional amps to give the system a good clean sound as you would get with an after market headunit (e.g. pioneer, alpine)
there is also a manual on this website above with full instructions on what it does
Any questions about it i will be happy to answer, just thought others out there who want more BOOF BOOF would find this interesting
Cheers

