Did you know that there is VW Jetta radio code generator which services can solve any Jetta radio key problem? Unlock Volkswagen Jetta radio code free! You don't want your Beetle rendered immobile by a flat battery when you have places to go and people to see. An alternator for Volkswagen Beetle has a steady output of between 13.5 and 14.8 volts which keeps your battery full charged while simultaneously powering your stereo, lights and power locks.
Volkswagens have an anti-theft feature built into the radio. Every time you turn off the radio and remove the key, a red light in the face plate will start to blink: this signals that the radio is in anti-theft mode. Anyone who does not know the radio code can't operate it if it is removed from the car. However, the radio also goes into this mode whenever the battery is disconnected, an electrical fuse is blown or you disconnect the radio from the current supply. You may need to reset the radio if this happens.