no H U turn on

[BigRed98Ram 10+ year member]

So I hooked up my isolator and batt today and pulled the interior of my truck apart and well my head unit doesnt turn on it just flashes. The cd player doesnt turn on when on accessories and no lights either. I only get the flashing when the whole truck is on and running. Ive had this once before just dont remember how to fix it. Any ideas would be great.

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[Radioflyer97 10+ year member]

your radio power wire should be hooked up to a constant 12V source. The turn on lead should be hooked up to a ignition Hot wire. Most radio harnesses have this labeled as blue or blue with a white line. Make sure this is setup correctly and it should work fine.

 

[audiobahnuser18 5,000+ posts]

Sometime's it is also a yellow wire.

 

[azbass 5,000+ posts]

your radio power wire should be hooked up to a constant 12V source. The turn on lead should be hooked up to a ignition Hot wire. Most radio harnesses have this labeled as blue or blue with a white line. Make sure this is setup correctly and it should work fine.

um the blue or blue/white wire is a 12+ OUT. you dont want that wire going to a batt or any ign source.