kamo502 wrote: Will the photo itself help anything?
Well, nothing will change. If the radio does not turn on when the volume control knob is pressed and when it is turned on sometimes it turns on by itself, THIS may mean leakage or poor contact of the switch built into the pulse generator. There is a switch in the pulser which, after sliding the bar (knob), short-circuits the switching circuit and the radio plays. If you turn off the ignition, the radio will turn off with the car. If there is poor contact on the switch built into the pulse generator (wear, dirt, oil, moisture) the radio in the extended knob position will turn on automatically when the resistance rises above the switch-off threshold and falls back above the switch-on threshold. Often such radio damage occurs through amateur attempts to repair the volume control by mindless pouring with ip, oil, wd or other crap on the pulser (encoder, jog ... how call it so called). Such a radio turns on for 1 hour while the vehicle is closed, the ignition off or immobilized. It can (rarely, because rarely but sometimes) also turn off for a while during the road (these are extreme cases, when everything is already rickety, it can only be replaced).
