I got the TATO for $40 from some amazon store, but even still, i would put the money else where if I had to do it all over again. It is the easiest solution, but clearly not the best. I will make do with it for a few months.
The problem with new speakers is the existing wiring. The wires run from the HU to the back where the jbl amp is then they run to the respective speakers from there. This link shows the pin out on the connectors:
pinout
I am not an audio geek either and want to keep the stock look. I have no interest in having a big ass amp or speaker box taking up space. My days of annoying people 2 miles away with my stupid bass is long gone. I do like to take Mr Van Zant's advice to 'turn it up' from time to time when the need presents itself.
Here is my speaker plan:
Center speaker: Removed. No plan to replace it. It lets heat out and I will put my gps antenna under there once the TATO is gone.
Front Door: Run new wires to the front door speakers and replace them with new 6x9 seperates and run them off my HU.
Rear Door: This is a little more tricky. I could run wires from the HU along with the fronts, but I want to use the speakers that are in the cargo area. Why? because they are there I guess. I could probably just put door speakers in and be done with it, but it one of those things. So my plan is to tap into the L/R line outs that run to the JBL amp from the speaker outs on my HU. Then install new 6 3/4s in the door and the tweeters in the cargo area. I will put the crossovers in the area where the jbl amp is. I will still have to sort out the wires to the tweeters since they are currently wired in parrallel.
Amp and sub. I plan on keeping the factory sub. I will replace the amp with a small mono amp that will fit in the space. I will use the data wires from the existing harness as my amp preouts to go from the HU to the new amp.
All together I plan to spend about $300-$400. Nothing fancy, nothing high end. I just want it to sound at least as good as it did, but still have all the features of the new head unit.