Hey guys,

I have recently purchased a pretty good condition 1989 Pontiac Bonneville LE. I am trying to take out the stock unit that is currently in the car, and replace it with my CD Player. After 3 hours of work [quite unnecessary might I add] of trying to get the stock unit out, we compare the plugs that we're dealing with... And it isn't good.

The wiring harness on the inside of the car looks like a typical GM Wiring harness I believe... it has like three parts to it, 2 black and 1 blue, they all look like they snap in right into something else... compared to the wiring harness that I purchased, which is a big box with a few pins down the center, that'* it... every search I pull up for 89 Bonneville'* Wiring Harness, I get the big box looking thing... but it doesn't fit!

So why is it that I am finding these two completely different wiring harnesses? What should I get so that I can guarentee this works? *Sighs*

not for sure i figured the one off the shelf would work.

So did I, but it doesn't. When I get home from work today I'll take pictures of what'* in my car, and what I purchased and stuff... but they are two totally seperate things. The best way to picture it is like legos... the one I need has to have like 4 different slots for me to be able to install it, each slot with about 8 pins, 4 per row... I need three slots on the bottom and one on the top right. [I'll illustrate with pictures in a few hours]. The one I purchased looks to be just one big plug that should plug into the car, but no place to plug in to. :/

Pictures would help us. There are some different wiring harnesses that were used in the 80s, like a 20-pin and a 12-pin, I believe.

My 87 has those connectors in it, Just so you know where they could have come from. What month was the car built?