I have recently bought a Seat Ibiza and am trying to improve the sound system on a budget.
My intention is to have a socket so that I can plug in my iRiver mp3 player.
My car is a 1999 V reg Seat Ibiza, the stereo is a Grundig 5201 RDS.
The manual for my stereo tells me it is possible to plug a CD player into the Multi changer socket. I found a circuit diagram on the web for an earlier version of the radio and have adapted this for my stereo.
I now have a 3.5mm Stereo Socket in the car which can be selected as the 'AUX' source on the stereo.
Any modifications you do to your car or stereo are your own responsibility. I have set out here the method I used to modify my car and stereo. I recommend you have some soldering experience and be happy with basic electronics. If you do plan on using my experience as a basis for modifying your own car please read my site thoroughly before starting.
Warning!! Always disconnect the battery negative lead before handling any of your cars electrical components.
Following is a list of the parts I needed to make the adaptor
The stereo I have is a Grundig 5201 RDS, I found from the instructions that this has an AUX mode which can be used to plug in an ordinary CD player or mp3 player.
Here I show how I removed the stereo, the connector that I used and the position of the connector
Here I describe which wires from the stereo go to where.
Fitting the socket to the dash.
The issue of powering an external device has come up, I simply use a cigarette lighter adaptor, however I have been told it is possible to wire up a system to power on and off with the stereo.