I hadn't considered using a 5/6 volt one... by just wiring in a 3v LED in series with the relay coil, it'll drop the voltage down to a safe level for one.

If you pick up one of these:
http://store.americanmicrosemiconduc...12-14d5-6.html

You can switch the audio channel and mute the other three channels.

I'll whip up a wiring diagram for that one in a few hours after I get off work, it seems like the optimal solution, and reduces the cost to somewhere around $10-15.

 

Cool.. Thanks.. I will be working on my car this afternoon.. I hope I can get that tail light and dash light problem fixed

 

A blown fuse is just your little reminder that you shouldn't be installing a radio with the battery connected.

 

I did disconnect the negative battery pole, but I think the fuse blew when I was testing the hu..
Hehe also I prolly forgot to close some of the unsed wire.. Lesson learned..
I hope it is the fuse and not something else..

 

Okay, sorry for the delay, here's the wiring for this:

 

Thanks for taking the time!!

I will do it as soon as I get more time..

You were right about the dash lights and the tail lights. It was a blown fuse..Thanks.

 

I am having the same problem but in my case i need to get everything. My nav dont even power up, so i need help with the wire to power it up and to be able to use the monitor features that come with the factory navi.

 

yucakia, could you be a little bit more specific?

You're putting in an aftermarket radio, but your factory navi completely doesn't work?

Have you checked your fuses?

 

Looks too much of a pain just to get the voice, I haven't used the factory unit at all since I got a new phone which has navigation. Wrathernaut thanks for donating so much of your time in helping us with our audio problems.

 

No problem, I do what I can.