I have so many questions and I've spent so much time researching without clear cut results.

I don't know much about the Infiniti Non-bose systems, but I'm planning on upgrading my system, and I'm trying to create the least amount of work for myself.

I was wondering if the rear speaker outputs carry the same frequencies as the front speaker outputs. If they do, I'm guessing it would be sufficient to use those outputs as a signal source? I've noticed that the sound from the rear speakers aren't as loud as the fronts and this worries me in that it might not have the same frequency response as the fronts do. Is my logic straight?

Eventually I plan on installing some components for the front but with the crossovers displayed behind the rear seats. I'll probably have to run new speaker wire. I'm not looking forward to that. Is it a good idea to use the signal from the rear channels as an input to the amp for the front speakers? I like good sound quality, but I'm not into competition so it doesn't have to be perfect.

If I don't have to tear into the dash, then that's less work for me and makes it easier to return to OEM if and when the time arrives.

 

My system utilizes the Non-Bose deck as source. I DID tear into the dash, but it was to install the RUX controller for the H701. While I had it apart, I hooked the LOC into the harness there. I DID use the front outputs.

As far as I know, nobody has run an RTA across the leads of a Non-Bose deck, so I cannot tell you if they have the same FR. My guess would be that they do... but it is just that. A guess.

If you DO use the rear leads as input, your fade control will be wonky; but that may be a moot point if you don't plan on running rear speakers.

Here's my install thread, if it helps.
https://g35driver.com/forums/audio-video-electronics/79113-sedan-install-build-up-pics.html

 

Yeah. I read through your post. Awesome install I must say.

Like you said, I really don't need the fade controls since I DO plan on not using the rear speakers.

I'm in the process of getting a PPI PC2400 (the chrome one). I believe that amp has balanced differential inputs which I guess takes the noise out of the incoming high level signals and makes it sound better. Would that be sufficient for decent sound or should I go with a quality LOC like an Audiocontrol unit? (I know. There's a million threads about this).

Don't flame me. I'm reading this as I speak:

https://g35driver.com/forums/showthr...tput+converter

 

I often use the fader for sub level control.

I have not RTA'd the non-Bose HU either. Hey, Big Sash, send me your non-Bose HU and I can RTA it on the bench!

However, if you use the new Zapco Digital Reference amps and the BMT balanced/speaker - to - Symbilink adapters, you can internally de-EQ any OEM equalization AND do a pretty darned smooth OEM interface.

We have done this with a BMW X3 and we are about to do an Audi A3.

 

Here's another question for you gurus.

I know it's not a good idea to run signal cables along side with the power cable since it'll introduce noise into the system and if you HAVE to cross the cables it's best to do it so that they're perpendicular.

My question is does this rule also apply to speaker cables? Will running speaker cables along side the power wire introduce noise to that speaker?

What about running speaker cable along side the low level signal cables? Will noise be introduced there?

 

The first rule you mentioned is still a hotly debated issue. Some say it matters, some don't. Since I had the car apart, I figured discretion was the better part of valor, and ran the signal cables separately.

The second scenario with the speaker wires is not really that big of a deal. The speaker wires are much higher levels, and the likelyhood of noise being introduced in that section of the signal path is greatly diminished.