How to open 98 cadillac trunk without keys

Question edited for clarity.
Question moved from Television and Video category.

Normally you remove the back seat back, and pull the emergency release. Or a mobile locksmith can get in. If the lock is worn, any similar shape key may work with some jiggling. Also look in the glove box for a release button.

I just found this in your Owner Manual for Cutlass Supreme

Remote Trunk Release (OPTION) Press the yellow trunk release button located under the instrument panel on the driver's side. Your automatic transaxle must be in P (Park). Remember that your trunk can be opened at any time using the lock release. Be sure to lock your doors

and also access into the back.

Trunk Access Panel If you have split rear seats, you may have a trunk access panel for storing long objects like skis. Pull your rear armrest down using the strap. Then pull the latch on the trunk access panel towards you to open the panel. To close the access panel lift the latch.

https://carmanuals2.com/get/oldsmobile-cutlass-supreme-1993-owner-s-manual-79185

Videos regarding a locked trunk.

https://www.google.com/search?q=open+the+trunk+on+93+oldsmobile+cutlass+ciera+without+key

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Unless you have fold down seats this can be exceedingly difficult if not impossible.
My advice would be to contact your local automotive club or a towing company and pay a very nominal fee to have the door opened.
All the best.

I don't know about your 1995 Ford Taurus, BUT I found that when the rear driver side seat was loosened, there were several cables running alongside the driverside rear (underneath the seat and connecting bolt). Pull gently on the cables...you will find one of them is the trunk release cable(which pops oopen the trunk). And lo....there were my keys inside the trunk. Took 5 minutes to take apart and put together. Good Luck.

By switching the lever you locked the inside trunk release, you will need to put lever back. as far as the trunk you may need to remove the rear seat, pop lower part out and then remove the bolts to the top half of the seat then try to reach the lever so it will open from the inside. i've found that many of these cars with the pop lever inside have sticking trunk locks from not being used, what you do first is spary lock good,with wd40 or pb blaster then slide key in and out and try to turn this may take a whhile but it works then tumbler will free up, you just have to keep spraying inside lock and working the key.

fold down back seat and manually release the latch them inspect lock for trunk