Camry Radio woes

[andy_jensen14]

Hi guys. Alright i recently purchased a pioneer stereo for the sole purpose of installing subwoofers later on in the year. problem is the stereo does not work unless both the ignition wire and the battery wire (red and yellow on the pioneer) are hooked up to the gray power wire coming from the car. Now, it seems kind of odd that this small gray wire is hot when i researched and found that the blue and yellow wire coming from the car is the battery wireand this isnt hot. My question is if the blue and yellow wire shoiuld be hot.

[uibalnme]

This may help, and yes the blue/yellow wire should be hot. Are you using an adapter harness or are you splicing directly into the factory wiring?

[andy_jensen14]

yes i found that color guide and it helped immensly. But no it definetly not hot. why would this be? the gray one is so i dont think it could be a fuse. Holy crap im frustrated

[andy_jensen14]

and i am using a harness but i can splice it directly because the wires were sliced and wire nuted together.