I'm fairly certain that you won't be able to do that. The Clarion units connect with c-bus cables. They use a Clarion digital protocol to talk to each other. Getting around that would be problematic at best, and impossible at worst. I've got an Alpine head unit in my '93 vert that has a built-in equalizer. You'd be better going that route. You'll also want to bypass the amp for the rear speakers mounted under the back seat and wire the rear speakers directly to the head unit. The Clarion head unit amplifies the front speakers, and the rear speakers are amped separately. You'll have trouble if you amplify an already amplified signal from the new head unit.

 

Smart move replacing the Clarion. both my '89 and '93 C900s had the factory radio. the '89s Clarion was great, my '93.....not so much.

 

Yes,it can be done.... A handful of people have used the stock eq however its not worth the hassle. The eq/radio is so old and outdated (even back then the sq was crappy at best) that you will spend. Hours wiring the eq to the aftermarket deck and it will only make the stereo sound worse.

Possibly do a google search and for the wiring on the eq. It used a din plug and you simply need to determine what each wire in the din plug does and wire it to the RCA cables coming out of whatever aftermarket deck you get.

I would trash the entire oem stereo.........

 

No reason to use that OEM pile. Especially considering the low price of basic head units that are leaps and bounds better.

 

You can find the cable wiring/schematic of the DIN-connector on my website:

Saab Clarion Audio System MY84-94

Everythings possible if you want it badly The C-bus protocol is only used between the EQ (or CD-EQ if you have that) and the CD-changer. So its plain old signal voltages in the DIN-cable.

BR,
Henrik