If transporting any significant distance or on the highway, my rods are broken down and placed in the tube and sock. Once on the stream hopping from hole to hole, I either use a homemade suction cup rod holder like the fancy ones, (one on the hood and one on the roof of the cab), or the fabulous and easily adaptable North Idaho Rod Rack.
The suction cup is preferrable to the magnetic holder because on my van the hood is aluminum, thus no bueno for magnets. You do need beer to lubricate the cups so they stick better to the surface. Harbor Freight suction cups, a foot of PVC, a bit of pipe insulation and a bungee out of inventory, less than $10. If one of the cups comes loose, pull over and reconnect. If they slide off the truck, it can be very bad, though they often hook up on the mirror before they fall off.
The North Idaho Rod Rack is very versatile. You actually have one now. Just pinch your reel down with your windshield wiper blade to the vehicle, resting the rod on the rubber trim above the windshield. I've never actually lost a rod falling off the pickup using this system. Coupled with the matching North Idaho Pinstriping with which I've festooned my pickup driving down narrow, brushy roads, it gives me local road 'cred in the Northern Rockies. Rockstar parking at most fishy bars.
Yeah, those vaults are cool. Store bought ones are expensive. Maybe someday I'll have a vehicle they fit.
