94 Cadillac Seville STS Bose Gold

Alright Im what you would call a semi-pro level installer which intels that I have done numerous installs but still majorly learning...  I have a 94 Cadillac Seville STS with a bose gold stereo sound system.  My question is that I am going to go after market DVD in to factory location and use the factory speakers which in turn I know have the amps on them.   Now the aftermarket head unit of coarse has power output so  you can send power into power...  So what module is needed for this car to make this install work?  Also I am understanding that I need a bypass of some sort because there are other things that run through the factory head unit.   Can all you gurus who have done installs on this vehicle and similar give me a little schooling on this matter...

Thanks!

kgerry that sounds like it would be the easiest way eh..  The interface just plugs into the factory wire harness of the car and the high level on the converter wires into the aftermarket radio eh?   Am I right  on this?  Does this unit help keep the sound quality clean?

If you buy a head unit with RCA Pre-outs, you should be able to connect these directly to the Bose amp inputs without any problems - jusy use an adapter from RCA to the hard wire connections.

If you use a harness adapter (I get mine at http://.../caudio-install-harness.html ) and splice that your harness from your new head, with some RCA pigtails spliced up to match the OEM O/P connections, you will get a really neat install with no hacking of the original wiring.

If you don't have RCA pre-outs (unlikely) and need to use amplified outs form the new head, then get a pac audioOEM1 (or similar) adapter. http://www.pac-audio.com/oem1kits/oem1search.htm

Their applications guide shows the different connection options you might be considering. You can a kit specifically for your Seville if you like.

Sounds pretty close mrb71 - you buy the harness adapter from million buy, and wire that up to the new harness from the new head unit to deal with your power, antenna, ; then you splice RCA jacks onto the million buy, with the "free" ends of the wires connected to the apprpriate pin locations that feed hook up to the bose feeds (you shoudl get a diagram with the plug from Million Buy. )

With the Pac Audio unit, you will end up with virtually a 1-1 ratio anyway and it's muh more expensive option. (It's really intended to line condition down from amplified outputs down to line levels when there are no RCA pre-outs on the head)

I've tried both methods with a similar Bose system (Acura NSX, not Cadillac) & the only thing you are getting is some transformer isolation. If you find you have any "popping" then just use a ground loop isolator between the head RCA outs & your new RCA "in"s.  It worked fine without either the pac audio or the GLI in my case.

http://www.bcae1.com/glisoltr.htm

http://.../hithnf20.html

Here's what you should end up with below .... the black plug was from a Sony HU and the white is the MillionBuy adapter; the RCA's are just a single pair of cables with the ends cut off to give 4 "pigtails; just wire up the center signal & ground to the appropriate wires on the Million Buy adapter. I also added a good solid ground wire to connect to chassis.

Plug the white spocket into your factory harness, the black one into your HU, the RCA's into the appropriate Outputs &  it should work perfectly!

I

Sorry about all the typo's - I'm a dyslecsic typist!  

Being a Newbie, it won't let me edit  

If there are any more questions regarding, please let me know. I have a 94 STS myself and that's what drew me to the post - the Bose is very similar to the setup in my Acura too however, although the Bose stuff is all ripped out of that now.

You should be prepared for amp failures before long with the Bose amp/speaker modules - I have three cars which all utilized these - the NSX, Nissan 300ZXTT and the Caddy - the NSX & TT have had failures although the Caddy is still holding up.  You can get replacement or repairs on the modules though, or even do it yourself if you are handy with a soldering iron and not tentative about working on PCB's - the capacitors are the weak link.

Good Luck!

D'Ecosse your the best man!  I know this install will rock with bros like you at my side...  I think you should go ahead and upgrade the Caddy of yours as well and make this a team effort getting two birds with one stone!  By the way how is your caddy running?  Have you had any major problems with yours?  As too I just bought this one for a second car. 

Thanks a million & keep in touch!

Ps dont worry about the typos bro as to we are in the same boat when it comes to that!  LOL