Hooking up headphones to a Radio?

Question

Ive got a conversion van with passenger headphones, how do i hook these up to my stereo radio used solely for the headphones? Headphones share the ground for left and right but radio has seperate ones. the headphones were grounded to the van's frame before but this never worked, blew up radio, how should it be done? (3rd time asking this question)

Answer 1

i can only layout the fundamentals:

headphones are the same as speakers in your car. you run a left +, right +, and a shared -.  you don't use the frame as - because it introduces noise from everything else that running through the car.

note that there are two types of +  on the radio, one delivers power and the other delivers the music signal you don't mix the two.

you must understand the wiring scheme of your car and correctly match it up to your stereo