Mystery Wires (stereo, maybe?), wiring Options

[avocadotom]

I am in the (hopefully) last stages of assembling my ‘72 914 and I’m hoping to install a stereo.

There are two mystery wires coming out of the hole where the stereo would be, although they do not appear to be the negative and positive wires (although I didn’t check if they independently have power to them). Any idea what they might be?

Backstory: I bought this 914 disassembled by a previous owner and I’m new to 914s, so it’s been a journey...

[scallyk9]

Not sure with a '72 model year 914 but on both of my 1974s, brown with white tracer wires are connected to the door contact switches on each side, meeting at the tunnel and going to the under passenger seat door open buzzer relay from which a single brown/white tracer wire heads up to the interior cabin light. My recollection is fuzzy but earlier models had a different system for the door contact switches in each side's door jamb. I think they were hot which is what the red/white wire might be. This brown/white wire appears to be too short to reach over to the passenger front door jamb.