Infinity’s INFPRV315 stereo receiver is an all-in-one unit with no black box to install. It has a 3½-inch TFT screen, large buttons, a rotary volume-control knob and 50 watts of power over four channels. It comes ready for wired and wireless remote control and includes AM/FM broadcasting, a weather band, U.S. and European tuning, Bluetooth audio streaming with ID tagging, USB input and auxiliary input. The unit has three pairs of RCA preouts, including a separate subwoofer output. $299. Prospec Electronics, Mount Pleasant, South Carolina, (843) 849-9037.