After perusing some of the Corvette catalogs, I noticed items called route bags available for the C5 and C6 models, but none specifically for the C4. I decided I should have one of these to store my maps and such. I purchased an iPad sleeve bag that I could use the main pocket for maps and the front zipper pocket for my registration and insurance papers. I then obtained an iron-on Corvette emblem from Amazon and a couple of shower razor holders from Kmart. Removed the suction cups, drilled holes in them and pop-riveted them to the back of the bag. I hang the bag on the edge behind the passenger seat of my C4. (see attached pictures)
front of route bag with iron-on patch & front zipper pocket for registration, etc.
back of bag showing shaver holders (suction cups removed) pop-riveted to bag with long
part of rivet out the back to help grip the carpet preventing bag from sliding
I added a 1 inch by 8 inch piece of plastic inside for pop-rivet reinforcement.
route bag in use behind passenger seat (wanted a C4 patch but couldn't find an iron-on one)
You can also see this on page 112 of the April, 2019 issue of Vette Vues Magazine.