I have my cb radio connected to the same plug as it's amplified speaker (1-into-two cigarette plug). I know that the transmit/receive power draws are supposed to be seperate, but when I transmit: the speaker light comes on...and I can hear my voice faintly coming over the speaker. No doubt this is due to direct signal from the roof antenna to the speaker, but am I stealing power from the transmit? The speaker is 8 watts and the cb is much less.