D DDFrontier 10+ year member Member 116 0 Louisiana Mar 7, 2007 #1 I have the XM universal tuner box and Pioneer XM Direct adapter. The adapter has two black wires coming from it. One fused, the other unfused. The tuner box has three wires coming from it - red, yellow, and black. I know red is switched 12V, yellow is constant 12V, and black is ground. Does the fused wire on the adapter go to switched or constant 12V??? Click to read more...
I have the XM universal tuner box and Pioneer XM Direct adapter. The adapter has two black wires coming from it. One fused, the other unfused. The tuner box has three wires coming from it - red, yellow, and black. I know red is switched 12V, yellow is constant 12V, and black is ground. Does the fused wire on the adapter go to switched or constant 12V??? Click to read more...
