I have 1 CPU + 2 sensors and another CPU + 2 sensors. I didn't try to connect the 4 sensors to the same CPU. Probably the cables are too short.
syrinx, You should have purchased two of the "AL Priority Sensor Extension Cables" @ $29.95 USD each. Then you would have been able to connect the two rear ALP sensors to one ALP CPU, to which the two front ALP sensors are connected.
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