Yes, did some reading on the audiophile forums.
The long and short of it is under 6' you will hear no detectable degrading of sound by using a 18 awg wire, over mega expensive monster cable. Only when runs get lenthy is there any issue. So i ran my amps to the front using high grade 12 awg. And connected to the cars existing harness.
Besides being easier and neater, my warning chimes work with out having add a standalone speaker.

I cant believe how.much room those channels had, and in the dash as well. No stuffing, cramping anything, any where.
Tomorrow will have the final pics up. Only had one snag and that was the turn on wire wad 3' to short once i had everything in place.
Am also re-doing the grounds. Picked up some 10awful primary wire from AZ. Will run the amp grounds under the amp mounts and attach to the front most cargo tie downs.

It's all in and buttoned up nice and neat. Sound quality is huge. Rear blind spot is gone. Well worth the time and effort.

Powered up, settings, etc

Red lines on the rear view are approx. 3' from the rear.
And yes that is the spare tire in the top of that picture.

Total materials used:
12"x42"x5/8" mdf lowes
3/4"x2" furring strips lowes
18" length of black felt walmart

Sound deadening is the peel and seal rolls from lowes
Same thing as dynamat/fatmat etc except it come only in 6" wide rolls x 25' long, cost per roll (12.5 sq ft)
Sells for 17.00 compared to 70.00 plus much easier to deal with in 6" pieces.
Deadening was 2 - 3 db compared to prior to install. No smell, and sticks well when heated with a small hair dryer and pressed firmly against the surface.

10 AWG 10' (1 roll of red,1 roll of black ) primary wire from Auto Zone.
6mm nut and 3/8" ring lugs also from Auto Zone.
6 AWG amp wire kit from Walmart.

Tools:
3/8" drive ratchet and 2" extension
10mm socket
7mm socket
T50 torx
T30 torx
Medium Phillips head screwdriver
Trim panel tools
Tie wraps 4"

looks good Larry. clean install

Total install time was just over 2 days, including running out for needed items and taking it slow.

Nice system and install work, but ...... a wee tad of constructive criticism.

You are still using the POS OEM battery terminal connectors, bad idea. Those things are absolute junk, it is not a matter of if they will fail, but when. Do some searches, you will see that they are the first thing to replace with quality aftermarket terminal connectors as cheap insurance against the rise of electrical gremlins.

Maybe you were already planning on getting around to doing that?

Which terminals you can recommend for replacement of POS OEM?
Sorry for the question. I found them from previous posts already- it's Stinger!

Had not considered that as yet, suggestions?

Ok... did a search... looks like some more research in store for new terminals is
in the near future.
thanks for the "heads up"