Greeting all, I recently bought my dream car (Evo 8 GSR) and will slowly, but surely, start making it my own. As part of it, I am changing the radio and speakers to some double DIN. My situation is the following: I'd like to rewire the harness to make it as stock as possible in order to have a good baseline to go to in the future. Below in the pictures, you will see a lot of connection and such. I plan on soldering once the new radio comes in. My questions are the following:1. Which adapter (big ones) is the vehicle's stock one? I'm assuming white one.2. It's my assumption they used the white adapter for 12v power, accessory and memory (since some of the gauges are also tapped into them) and then spliced out the speakers, tweeters cables. Is this correct or good assumption?3. What would be the best way to rewire back to the original (closest to) harness?4. Any suggestions or ideas are definitely welcomed. See pics for reference.

Better view of radio harness and cabling.

How I found the radio harness after uninstalling.