Before I decided to install a push button start I searched on here for any threads that might help with the ignition wiring to figure out where to tap into. I really didn't find any threads with pics or any real help getting it figured out so I just went at it. I know it was debated on here why add another step into the starting process. For me, it was because there is a spot on my base 98 on the dash where the wiper control would go for newer models so why not add it there. I am also a person who can not do something on any of my cars I own, so why not add it to this car. I have always liked push button starts on different cars so here was my little project and it literally cost me less than 10 dollars to do. Here is a little write up to help anyone wanting to do this in the future, it will help you out on some of the guessing where to tap into.
So this is the button I went with
Universal 12V Car Engine Start Push Button Switch Ignition Starter Kit Blue LED | eBay
It comes with the relay already so no need to wire up my own. This one is a little more expensive than the one I purchased.
With this kit I had to modify the hole just a hair to get it to fit into the slot. I just used a good pair of wire cutters I had to cut the plastic away on the back side of the trim. It fits snug and does not move and it does not need the locking ring (which will not fit in the space because of the main center console bracket). I already moved the buttons for the top, lock and mirror heaters to the driver side of the console and left the cigarette lighter on the right. I didn't like having to reach across to reach those buttons so it is all based on the driver side. Easier to reach to ad makes more sense to be closer to the driver in my opinion.
So getting to the ignition wires for this push button; I switched out a new ignition switch while doing this mod since I was already going to be in the same area. I picked that up for less than 6 bucks new on amazon.
The solid Yellow wire is the 50 series wire you need to tap into for one of the blue wires. The instructions say green wires but there are two blue wires. The red and other blue wire can be twisted together and tapped into a red and white 15 series and the black can be grounded anywhere. I grounded it with the cigarette lighter with a vampire clip. I already did a HVAC and radio relocation to the bottom slots awhile ago so I have plenty of room behind the slot and cupholders I installed.
Sorry for not having pictures but it is dark in my garage at the moment. Hope this helps anyone if they want to do it in the future.