One way around this is to install a Bosch type relay that's available at about any parts store to relieve the strain on the ignition switch. Find the blue "igntion run" wire coming out of the bulkhead. That is what feeds your VR and ignition system. (On newer cars, some other loads as well) That wire IS NOT fused
Cut the wire at some place you have or can make a little slack. Feed the blue wire coming out of the bulkhead to the trigger / coil on the relay. Ground the other coil lead of the relay. CHECK that there is not a diode in the relay, if it is, it will be polarity sensitive which one you ground.
Next you have power into the relay contacts, you can get that with a fuse/ breaker off the start relay, and to your new relay.
Last connect the "engine bay side" of the cut blue wire to the loads contact on the relay.
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@67dart73
Thanks!! I have a questionable connection at the BR that might be the problem. I'll first see how I make out with that repaired. Your relay suggestion will certainly be the fix if the issue is elsewhere in the blue wire.
As above, ground 85, run 86 to the blue wire from the interior through the bulkhead
Supply fused power to terminal 30 from the starter relay
Connect 87 to the "engine side" of the cut blue wire