I found this site they have amps for most infinities, including the one I need for my G35 coupe... Mine was 159 + $20 shipping with a 90-day warranty... Probably better than a wrecking yard or eBay with unknown reliability...
https://www.cd4car.com/infiniti-g35-g-35-coupe-bose-audio-amplifier-225-watt-amp/

I will update when I get the amp...

 

Nice!

 

I suspect that "refurbished" merely means "wiped the dust off it".
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Very likely... But that's about the best you're going to get and at least he guarantees it for 90 days or you can buy up to a one year warranty for a little more if you want

 

So I got the amp from the site I mentioned above, I got a tracking number and it arrived as expected on time, unfortunately it seems the amp is not my problem after talking to the very helpful and polite technician he explained the head unit is often the blame for not sending sound or not sending a signal to turn on the amp... He asked me to return the amp and he would refund my money as well as test the amp and make sure that it's functioning properly so that I will know if it is my head unit or not... He also informed me they sell head units but considering mine has navigation it's an extremely hard install I may not want to take on myself.. but he seems genuinely interested in trying to help me fix this problem and I'm sure the fact that he gets to keep the $20 shipping doesn't hurt his feelings any but I've been treated well

 

Please don't flame me for not doing my research but does anybody happen to know the particular pin in which connector receives the signal from the head unit to turn on? And yes I know if I search for 2 hours I can find it if nobody knows off the top of their head I will absolutely do that I'm just hoping maybe somebody can answer this without having to think too hard

 

Look for a green wire with white stripe.

 

Funny, from the FSM for your 2006 g35 coupe I read it as terminal 31 at the Bose amp - Sky Blue colored wire. You might want to do some digging anyway:
https://www.nicoclub.com/service-man...F2006%2Fav.pdf
Under the window you can "click to download".

 

Look like you might be right. But I found this wiring diagram online and was going
off that. I wonder which one is correct.

 

Ok I figured it out. 05_SkylineSedan is correct.

The wiring diagram I posted is from the 2003 sedan manual. I saw the 06 at the top right corner and thought it was for a 2006. But thats just the figure number it seems like.