88 Phazer taillight but no other lights

Hey guys. I'm a little confused by this sled. It's an 88 phazer and I've been going through everything since picking it up. It's running and riding great so I put new bulbs in it thinking the last person never bothered fixing them. I have the taillight coming on while running but nothing else. The brake switch is working on the meter as well as the same color wires showing continuity. I would think with one bulb working the others should to.

Anyone know where else to look? Any ideas are appreciated at this point.

Thanks,
James

Well after taking the harness apart, I found a broken solder joint where someone had added some unknown accessory. A simple butt connector and I'm up and running again.