The challenge will be routing the cables which are RCA
The wiring for the dome light and wipers go through the windshield and you can barely squeeze more wires in there.
I think you’re right, it would tough to get the stock harness including dome light, as well as RCA cable, mirror power, video trigger and temp leads through those holes. Plus, I want to send a wire for heated windshield wiper blades through there, too.
One thing came up; the Painless? wiper motor connector didn’t appear to match either the old or NOS wiper motor harness I bought. I found my old wiper motor and it turns out the NOS connector I’m holding next to the Painless one is the Wiper Motor connector. The new motor I have uses Faston terminals.
So, it looks like I’ll be making a new wiper harness. I have some left over Mil-Spec Tefzel wire from another project, which has smaller diameter insulation, so I’ll make up a new narrower (and more flexible) harness using Molex connectors. Despite my aversion to making new holes, I went ahead and mimicked the original windshield frame holes on the Pax side. I wanted to coat the inside of the windshield frame with KBS Cavity Coater, and these access holes will make that much easier.