I'm replacing the 4 door speakers and the factory stereo in my '93 volvo 940 wagon and i've got the speakers in but needed some help with the stereo install. I've ordered all my stuff through Crutchfield, but there wasn't a master sheet for this specific car so im kinda on my own for the instructions.

I received two wiring harnesses, one that connects to the factory wiring in the compartment that houses the stereo, and one that connects to the factory amplifier located under the stearing column. First of all, I didn't know this car had a factory amplifier, so can anyone explain to me how I hook this wiring harness up to it? (I removed the panels to get access to underneath the stearing column and I think i located the amplifier, but i couldnt figure out how the wiring harness plugs into it..)

Secondly, my new stereo head unit has a wire to connect to a ground source. If any of you guys have installed a new stereo in a vehicle like this, where did you connect your ground? I can see a couple various bolts in the back of the stereo slot, is that where I should connect it to?

Last question, The factory stereo had a cable plugged into it that is fairly thick, black, has a circular connecter with (i think) 5 prongs inside of it. What is this cable for? My new stereo doesn't have a space to plug this in..

Thank you very much for any help. As you can tell im new to the whole car audio scene and any information is much appreciated as I do not have any instructions specific to my car. Thanks


- Sorry, i just realized there is a car audio forum, i will post this there.

Problem solved, I figured it out.