Abstract: The disclosure relates to a lockable mounting means for removeably supporting electronic accessories in vehicles and primarily citizen band receivers and transmitters, as well as stereo transcribers or the like. The aforementioned mounting means is provided with a telescopic mount, one portion of the telescopic mount being mounted in the vehicle and the other being secured to the electronic accessory, such that the telescopic members may be locked together or unlocked by a suitable key operated tumbler mechanism so that the electronic accessory may be removed from a vehicle temporarily to prevent theft when the operator of the vehicle is not present. The disclosure also relates to novel L-shaped bracket mechanism for mounting the electronic accessory to one of the aforementioned telescopic members.