cheap double DIN radios...?

I see them on Ebay, sort of an android cell phone in a double DIN enclosure with a CD player on top. some are cheap, $66 with no CD or up to 1599 with Sat Nav and HD radio. The $119 one had a CD player, aux, bluetooth, USB and SD input as well as AM/FM/SW(?). I had a cheap *** spindleless AM/FM/USB but the AM reception was terrible and I actually listen to AM news. FM was just as bad...is it just the "radio on a chip" thats so bad for terrestrial reception? The antenna is stock that worked fine on the OEM radio. This wouldnt be for the 65, it would be for my 92 LExus with a stock double DIN thats not working well. radio preamp is flaky. It would use the stock 5 channel amp in the trunk so I would not use the inflated 40WPC that the new stereo promises, just the preouts