It's a shot glass!
I was wondering if anyone else with a '98 GL came across this problem when trying to route cable for an amp. If you did, how did you end up routing the cable? I tried going the route that Marvins Dad posted in the How To section but the thing is that the spot mentioned is already being used for the Throtle Cable I've been looking for another spot and I can't seem to find one and I don't want to drill a hole especially when the heatshield padding is everywhere on the inside and on the outside of the car. Any suggestions?