I found my Clarion VRX8370R in the Camper I bought and I wasn't able for month to understand it.
The Owner Manual was perfect and just what I was searching for.
Thank you.
Leonardo
Text excerpt from page 9 (click to view)
Selecting a station The bottom line of the display shows the name of the station currently selected. a. Rotary tuning control knob to scroll through the list of available stations. Stop rotating the tuning control knob when you find the station that you wish to hear. b. Press in and release the Select button to select the station. The display may show �Now Tuning � ..� while your radio finds the station. c. Adjust the volume control to get favorite sound level. Note: If after selecting a station, the display shows �not available�, it may be necessary to relocate your radio to the position giving better reception.