I see there has been a lot of write ups on aftermarket radios, I just can't seem to find the right link for what I'm looking for. Does anyone have any luck with the direct fit Radios you see on eBay from China? I want a stereo that will still have the on board computers stuff (like gas mileage). I don't care about Navigation. I have that on my phone. Any help would be great. I have a 04 4.4 with navigation and no DSP.