Constant Power To Radio

[davej]

When installing a stereo there are two hot connections. One for constant power; This is the black/white coming from the factory harness that connects to the yellow of the headunit. The other becomes hot when the key is turned on connects to the red of the headset. I did something and lost power to the black/white in the factory harness. I checked all fuses and they looked fine. Where is this fused?

Thanks...Dave

[PIONEERSUBY]

When installing a stereo there are two hot connections. One for constant power; This is the black/white coming from the factory harness that connects to the yellow of the headunit. The other becomes hot when the key is turned on connects to the red of the headset. I did something and lost power to the black/white in the factory harness. I checked all fuses and they looked fine. Where is this fused?

Thanks...Dave

lexus black and white wire is always the ground wire. the 12 volt b+ is always blue with a yellow stripe. that connects to aftermarket yellow. the other hot wire is always a smaller solid gray wire which is lexus accesory circuit and it connects to aftermarket red wire so of course hooking the lexus ground to ground to yellow 12 volt pos would blow the fuses its fused at fuse box in kick panel and also in engine compartrment. .