Hi all. Thank you all for you responses, but I must say, that I'm still stuck. I don't want to have to buy a sub, if i don't have to. Now, let me explain...
I used to have that radio in a Toyota Avalon XLS, which had a pretty good system I must add. Well, I took it out since my wife hardly ever used it, or cared for it, and wanted it for my own Pilot. When it was on the Avalon, I had to use the plug behind the radio, which crutchfield had sent to me, and everything, including the stock sub, worked. I do think that the Avalon had a stock amp, since it's a JBL system on the highest Avalon Class.
Now, you guys said that the Pilot Stock Radio gave power to the sub, but I don't know how, if that little harness ONLY has TWO cables, positive and negative, two wires, that look exactly to the regular FR, FL, etc. I saw them, and per the wiring harness, they are for the stock subwoofer. Did the stock radio have an integrated amp to power the sub? I don't think it would fit there.
Now, if thats the case, there has to be a way, with some type of bypass with a relay, that will give power to the sub? I installed a bypass for the radio that will allow DVD playback while driving. On the video that taught me how to do the bypass, he says something at the end explaining what the bypass does, can't the same thing be used for a sub?
Heres the link of that video:
I also attached two pictures of the board of the stock radio where the harnesses connect to. The gray one, is the one where the subwoofer harness connects to. Is there any power there? I don't see anything that shows giving power, or anything like a mini amp. Is there a stock amp?
Guys, sorry for not giving up on this, I think we may be able to save the stock radio for people that are like me, that don't necessary need a lot of power. If you guys have ANY ANY idea how this MIGHT work, let me know. I don't mind trying it out, and post the results. Together we can come up with something. Look at me as a guinea pig...