Hybrid stock/aftermarket system w/DSP?

[Sguirrelfeather]

I may be in over my head here....not sure. So, for anyone who hasn't read the other thread, I'm helping a friend out with a few upgrades. One of the things he wants to be able to do is fine tune/tweak his setup with a DSP. Understandable. However, he does NOT want to get rid of his stock HU. It's a 2011 Kia Sorento with the "super-upgrade" Infinity system...it has navigation, GPS, wipes his a$$, etc.

According to a diagram I found online, there is a custom JBL 10 channel amp (not sure why only 10 when it supposedly has 12 speakers) which feeds all of the drivers. So, should be easy, huh? Just take the output from the HU, pump it into the DSP, and then back into the amp. No such luck. It uses some sort of digital output. The diagram says SPDIF, but it also shows three wires, a negative, positive, and ground, so not really sure how that sucker works. I read somewhere that you can get a toslink adapter for the DSP, but are they reliable and accurate in sound reproduction?

If anyone has any experience with this sort of thing, I would love some advice! Otherwise it looks like the only option, really, is to disconnect the speakers from the amp, run LOC to a DSP, DSP to a separate amp, and the power the speakers that way....which, of course, would just be silly.

Ideas?!?

Click to read more...

 

[Sguirrelfeather]

So, was doing some more research and came across JL TwK-D8. It's only 8 channels, but with an adapter it looks like it might work as long as I "bundle" the rear door mids to the hatchback mids so I can keep it down to 8 channels. They say on the website that you can daisy chain the TwK, but I don't know what the benefit of that would be. Could it mean the first does 8 channels and then you can do the other two with the second? I emailed them with my questions, but figured I'd see if anyone here has info on them.

 

[Sguirrelfeather]

No one?

 

[The Camry]

Show the diagram

Sent from my SGH-M919 using Tapatalk

 

[Sguirrelfeather]

This is the only one I can find which I can be certain is the same sound system. There are others which are similar, but I don't think apply. And this is not my image, but rather one someone else made notes on.