sdbrown84

iTrader: (22)

I am currently hooking up a FM modulator to the stock Monsoon headunit. I am planning on using it to run the RCA cables down to a mini adapter and into my Pocket PC. I need to run a hot and a ground. The two adapters in the back of the unit (CD Changer and standard headunit adapter) have many colored wires.

Which wire is the switched hot and which wire is a ground?

Any help would be greatly apreciated. Thanks guys.

VIP1

Here are the color codes:
https://ls1tech.com/forums/showpost....1&postcount=10
(Its in the FAQ).

Why an FM Modulator instead of a GM9-AUX?

sdbrown84

iTrader: (22)

The AUX input requires that you do not have a stock CD changer (correct me if I am wrong). I need to have acess to the CD changer as well as the aux input. Thanks for the help, and please clarify if I am on the wrong path.

VIP1

I'm not sure.

The GM9-AUX does have a pass-through to allow the retention of the CD-Changer, but since I dont have a CD-Changer, I cant confirm that that feature works.

Pressing the CD/Play button on the Monsoon headunit should swap between the in-headunit CD, CD-Changer, and AUX device. This is how others have described it, but you need a 2001+ headunit.

If you are interested, I bought mine at www.myradiostore.com.
http://www.myradiostore.us/auxadapte...r/gm9-aux.html

The X3GM9 might work for you too:
http://www.myradiostore.us/auxadapte...ger/x3gm9.html
It is kinda like the GM9-AUX, but with a built-in switch box to add (and swap between) 3 RCA AUX devices. It requires the CD-Changer to be connected to work though.
Also, I have no experience with it and know no more about it than listing on the description on that site.

sdbrown84

iTrader: (22)

Do you know how to check if you have a 2001+ unit? I purhcased a replacement headunit some time ago to replace my old 99'?

VIP1

I think there is a sticker on top of the headunit.
If you cant find a year listed on there, look for the P/N.

sdbrown84

iTrader: (22)

I will look this weekend when I have access to the car. So the AUX has the ability to switch between the CD and the RCA inputs as well? Thanks again for your help.

VIP1

Yes, that is the way it is supposed to work.
On the Firebird, its the "CD/Play" button.
I dont have the factory CD-Changer though, so I cant confirm that part.
For me, pressing "CD/Play" swaps between the CD Player in th headunit and my XM receiver.


You are welcome.

Toasty

iTrader: (13)

Why are 01+ the only years that will allow this?

sdbrown84

iTrader: (22)

Is there anyone that can confirm the use of both the stock CD changer and the additional RCA inputs?

I would really like to switch out the modulator if possible.

VIP1

Before 2001 the Monsoon headunits could only control one external source (AUX or CD-Changer). The 2001+ headunit can control more than one external source (AUX & CD-Changer).

There are some more differences over the years too.