Avoid indoor antennas as they are subject to drifting performance as you move about the room and will pick up interference from personal computers, TV's, radios and other appliances. Clock radios, portables or boom boxes without terminals for external antennas will not perform well at home unless you are quite close to the radio station or have an unusually clear path to it. Most cable companies pay little attention to FM reception so you may find that VPR is not good on the cable. If so, do not connect your FM radio to your cable system. You can usually do better with your own roof top FM antenna.
Automotive reception is very problematical due to the hilly terrain.
Best reception is in monaural. A few of the premium factory equipped car stereos have diversity antenna reception. Only two after market car radio manufacturers currently offer it. The diversity system uses two antennas on the car and constantly compares reception on both, switching the better one to the radio. Try another radio.