This thread needs some serious updating. Many of the products listed in here are no longer available. Surely some better options have come on the market since this was first posted, no?
So the PAC AAI-NIS2 auxiliary input adapter is no longer available for sale on Crutchfield or Amazon:
The PAC Turbo-1 line driver signal amplifier IS still available on Amazon:
But the reviews are terrible. I'm thinking this JL Audio version is probably better:
To top it off, the reviews for the GROM unit are awful:
There's no way I'm going to the trouble of installing that just to deal with those problems.
I called up the local Infiniti dealership and was informed that the OEM iPod adapter is really just an iPod 4 adapter and is not a regular universal AUX/3.5mm cable. So that option is out the window.
Earlier in this thread someone mentioned that the PAC model is discontinued, but that the PAC ISNI571 ($189) model should work:
But that model is more geared for someone using an actual iPod- I just want a universal 3.5mm aux input.
PAC offers three other products, apparently for the FX:
The TranzIt for $89:
The TranzIt USB for $89:
And the DuaLink for $129:
Of those, only the DuaLink appears to have Nissan/Infiniti-specific plugs on it. It's not clear how the two cheaper model would get wired up to the back of the head unit.
I found what appears to be a derivative of the DuaLink kit, a kit by iSimple, on Amazon for a lot less ($75):
It gets good reviews and appears to just plug right into the back of the head unit. To me, this appears to be the best option.
As far as ground loop isolators go, I found two that get good reviews:
Radio Shack for $16:
And Mpow for $9:
But those should only be necessary if you're also charging the device at the same time, right?
So, to me right now, I'm thinking a complete setup would include the $75 iSimple DuaLink kit on Amazon, the $60 JL Audio line level controller, and the $16 Radio Shack ground loop isolator, for about $150 total.
Can anyone verify if this is all accurate? Are there other products out there that I don't know about? I'm picky about audio quality, and don't have much patience for junk parts. I need this to be a reliable mod that won't introduce problems down the line.
Thanks in advance!