im a noob here and i have a question about the RB4. im putting in a system in my truck and i was wondering if the RB4 has the aux. jacks in the back for the speakers. i dont really wanna get a new head unit cause this one has navigation on it, and i use it often. does anyone with an RB4 have a system and their truck and kept the head unit.

 

Not sure what the RB4 is but you could always get a line converter.

 

thats what I did.
You need to get the line converter but they only way it will work is to "pony" it off the door speakers.
If you have the Infinity system you will have to splice into the front door speakers in order for it to work.

 

tailbuster....yes i have the ifinity system in it, i dont really want to splice into the door speakers. so u have the rb4 head unit in ur truck also? would a local audio place have a line converter?

 

I have the RB4 head unit/with theinfinity speaker systemand Ispliced an audio link (high/low converter) into the rear speakers right behind the deck allowing me to run RCA's to my amp. 250WFosgate ampwith a JL10". It sounds pretty good. You can adjust the Gains on the Audio link as well as the amp itself.