Need some help with sending audio to stock amp
I have a 2001 Nissan Pathfinder which has a stock external amplifier. I have found following info on www.installdr.com :
"Most Nissan Pathfinders will have an additional amplifier connected to the Nissan stereo. This amplifier will power the speakers inside the vehicle instead of the amplifier inside the radio.
The Install Doctor recommends “integrating” into this Nissan amplifier when wiring the new replacement radio. This means that the Nissan amplifier will power the speakers in the vehicle instead of the amplifier inside the new replacement radio.
To “integrate” into the Nissan amplifier you will simply wire the new radio just as you would if there was no amplifier in the vehicle.
The only difference in the wiring is that you will need to activate or turn on the amplifier when the new radio turns on. In order to turn on the Nissan amplifier, two wires in the wire harness connector in the dash need to be connected to the new radio.
These two wires are located on the smaller of the two white connectors of the radio wire harness located in the dash. One of these wires is a (+) 12 Volt wire which connects to the new radios power antenna turn on wire (some new radios may actually have an amplifier turn on wire in addition to a power antenna turn on wire). This wire will tell the Nissan amplifier to turn on and off when the new radio turns on and off. The second wire, also located on the smaller of the two white connectors, is a (-) Ground wire for the Nissan amplifier. This wire needs to be connected to the new radios Ground wire.
If you follow The Install Doctors installation procedures and mount your new radio to the metal brackets originally mounted to the Nissan radio, you will actually ground the radio through the metal brackets when the brackets are screwed into the dash.
Connecting the Nissan amps ground wire to the new radios ground wire will ground the amp as well through the metal brackets.
This method is probably the best method to connect and turn on the Nissan amplifier and does not require alot of additional wiring."
Now my question is this, is there any way to hook up my audio out on my EPIA board to the speaker wires so that the stock amp can power the speakers?? (my head unit will be removed)
The area that I am concerned about is the fact that a stereo output from the computer has 2 wires (one for left and one for right), but speakers in a car have 2 wires each (one for - and one for +).
I have heard stories of car stereos blowing up if you run the ground wires together rather than each to their own wires.
Any info on this would be greatly appreciated!!