Rep Power: 0

I did search and find out only for two channel which can be splice at the rear speaker. For now I would like to keep my stock cd HU. I have four channel line converter output, if I splice it at the rear left and right speaker, what about the front left and right speaker where is best the location to splice them. I have Arc Audio 5150 cxlr five channel amp, Jl csi 6.5 for the front and 1 inch spacer, and Diamond Audio 391i 6x9 for rear deck. I dont have a sub yet. I got my amp power wiring done and rear speaker inplaced but not connected to amp. I got the driver side door panel remove the stock speaker and place the 1 inch spacer for JL xr and now i dont know what to do maybe I just go to Cartoys or Goodguys to install them professionally for me. I really appreciate your help/advice for me what to do.

 
Rep Power: 0

The best place to splice it would be behind the HU cause that is the only place you will find all 4 channels located in the same place.

 
Rep Power: 348

Don't splice behind the HU, it's just a pain to do that. Just splice the rear speakers. Sound isn't transmited front to back, only left and right. So, even if you take both front and back from your back speakers you will get the same sound. Hope that helps.

 
Rep Power: 0

it is a pain, but then he wouldn't be able to fade... i can't remember how many times i've needed to fade my sound to the back to shut people up without deafening myself...