Need some help with audio wiring

[2canSAM]

Wiring up a 1/8" stereo jack like the one in the pic below. I have 4 wires to attach R+, R-, L+ and L- but the jack only has 3 receptacles. Do I just combine the L- and R- into one?

Pic of the jack I have

 

[turunturun]

A couple questions: What is the application? Also, is each channel supposed to be a balanced signal (meaning 3 conductor with R- and L- and Ground). If the R- & L- are actually the grounds, then they can share the common post like you said. But if the signals are balanced and grounded elsewhere in the device, then you should use 2 1/4" jacks.

 

[2canSAM]

Application is to add a 1/8" stereo jack to my Pioneer head unit. I have the IP Bus hack completed and spliced in a 1/8" stereo to R and L RCA jacks. Coming from the head unit I have 4 wires R+,R-,L+,L-. I took these and matched them up with the Right and Left of the cable I was using and it sounds great. Look at this it will probably explain what I want to do better than I can. I want to replace the 1/8" plug with the 1/8" jack.

http://pics.bbzzdd.com/users/2canSAM/Wiring.JPG

 

[2canSAM]

anyone else?

 

[Pepsi90919]

please make the pics smaller

 

[2canSAM]

Originally posted by: Pepsi90919
please make the pics smaller

Sure, anything if it would help you give an intelligent answer.