ROFMLAO. Isn't that the truth. Car audio and car computers are an endless rabbit hole of time, money and desire. I finally gave up the battle with amps, wiring, fiber optics, tuning, fuses, and the constant tweaking and went with a mid-range head unit for under $100 from JVC, I think. You can set the colors to match any interior, it has two AUX outputs - one in front and one in back - and a USB port in the front. It also controls an iPod or any other external data source (but sadly, not an external hard drive) and displays folder/file/track information on the screen natively. That and new speakers and I was in business for under $200. It's not a sound stage but my car isn't a Jag or a Bentley, either. Sometimes the "80% solution" is good enough!
Sorry, BT, just realized we hijacked your post.