Hi Team!

I have a pioneer deh-2700 and it is in my 73 Mustang, crappy installation. While driving to work yesterday it cut out and I think one of the wires came out or something, it still had power, but no sound. So when I got home I took it out and pulled a few more wires out of connections too. I tinkered with it for a while and didn't get anything. I have the wiring harness connector, so I think i'll start from scratch. Heres the wires...
Yellow-large-with a tag that says (+Batt)
Black-large
Red-Tag that says (ACC)
Blue with white stripe
Green with black stripe
Green
White
White with black stripe
Grey
Grey with black stripe
Purple
Purple with black stripe

Like said before, the deck is a newer pioneer deh-2700, and it had the wiring harness connection, and two ports for speakers, L and R. I wasn't using these speaker ports before, but last night when I was tinkering, i hooked these ports up and got sound, but it was very faint even with the vloume cranked.

Where do I connect the wires? And also, the deck smells burnt a little, like fried wiring near the harness connection, how do I determine if the deck is still good?

Thanks alot!
-wes

follow all your wires and make sure nothing is shorted out(bare wire touching metal) go all the way from the speaker to the deck..

Yellow = 12V hot all the times. Keeps the memory in the radio alive.
Red = 12V hot with the ignition on.
Black = Ground. This wire hooks to the car ground.

Speakers should not be grounded to the car!

White = Left Front +
White/black = Left Front -

Gray = Right Front +
Gray/black = Right Front -

Green = Left Rear +
Green/black = Left Rear -

Purple = Right Rear +
Purple/black = Right Rear -

The blue wire is a low amperage wire to turn on an amp, power antenna, or some other acces. that you may have it hooked up to. It energizes when you turn on the head unit.

Those 2 speaker ports your talking about are probably RCA jacks for an external amplifier. This is a low level output bypassing the internal amplifier.

Thanks alot guys! Know i now a little something about sound systems!:D Now, i'll get back to work with mine and see if I can get Van Halen playing again :thumbsup:

I worked on it again today with no success. I double checked all of the wires and nothing. I put a voltage test on the speaker wires and I had no juice. The fuse on the deck is good.
-Do i have to have that blue w/white stripe wire connected to +?
-Could the unit be fried?

thanks,
wes

The blue/white wire should be hooked to nothing at this time. It is there only to energize the amp or ant. Do not hook it up to 12V.

The troubling comment was that the head unit smelled burnt... plus having output on the RCA low level jacks...

If your speakers and their wiring check out, that starts to narrow it down to a fried amplifier. You could open up the Pioneer head unit and check for dark brown spots. If you find any then you can either fix it, pay to have it fixed, or buy an external amplifier to hook up to the RCA output jacks.