The Ford Ranger is a utilitarian truck with a fairly lackluster interior and entertainment system. Later models like this Ranger Sport had a CD player that supported MP3 playback and 3.5mm AUX input but that was the extent of the audio system on these work trucks. The speakers are entry level and the sound deadening leaves much to be desired.
For this vehicle, we went with the Pioneer MVH-200EX which is Pioneer's entry level double din receiver. This mechless receiver doesn't have a DVD drive but has USB input and Bluetooth connectivity. In terms of sound quality out of the box, we've been blown away by the performance of this head unit. It's not the best setup for adding amplifiers since it only has 2V pre-outs but the equalizer and built-in amp is excellent. The touchscreen response is also surprisingly impressive.
We matched this system with some Alpine S-Series speakers which are a good mid-grade speaker provided there is enough clearance for the larger magnets. To help these speakers sound better, we also added some buzzmat sound deadening behind them. These are the updated version of Alpine's Type S lineup and feature new materials and their famous HAMR surround. For under $200 they are a great value and worth considering with any audio upgrade.