There's plenty of Modifications you can do , but the first thing you should do is get all the maintenance up to date. since all the Mechanical / suspension on your car is basically MK3 you should search through the MK3 Forum.... Here are a few links to get you started.
http://forums.vwvortex.com/showthrea...Think-Are-Cool
http://faculty.ccp.edu/faculty/dreed...tech/index.htm
http://forums.vwvortex.com/showthrea...intenance-List
http://forums.vwvortex.com/showthrea...ll-Hint-Thread
http://forums.vwvortex.com/showthrea...-Pic-thread!!1
If You're having issues with your ignition switch just replace it. installing a push button start is just ricey, and you will probably have issues unless you can figure out how to defeat the immobilizer. If you do defeat it your car will just be easier to steal.
What do you want to do with the door chime ? Most people just take it out (it's in the relay panel and has a little grill over it) if you want to turn the volume down on it just put a piece of tape over the grill.


