Head unit modification on a 1994-1998 Saab 900 to add a line input for
external media player connectivity.
If you have any kind of suspension modifications, or simply if you drive
your car hard, you will eventually get tired of your CD changer skipping
on bumps. Worse even, it does the same with stock suspension.
An MP3 player sounds like a good alternative, but the stock head unit does
not have a line input, so you end up using an FM modulator or a cassette
adapter, which inevitably sacrifices the sound quality. And you probably
don't want to do that, especially if you just spent a good deal of money
upgrading the audio components in the car.
Here's the solution, a relatively easy way to add a direct line input to your
stock head unit without sacrificing any existing functionality. There is
a couple of alternative ways, this guide shows how to do it by using the
tape deck inputs of the internal amplifier.
Thanks to all
forum members who did the research and contributed to the installation