Car audio guy here....

Right now I have Polk audio amps and a kicker 10L7 to install along with pre-buyout MB quart 6.5 components and 6x9 components for the rear. I may modify my dash for a nav unit or just drop it down to the center console I'm building. I plan on finishing out the trunk in a similar fashion as the mustang you shared. I will mount the front speakers in kick panels that I make.

My big install last weekend was a John Deere tractor. Farmers need their tunes too.

It looks like you do some real nice work.:cheers: