This might be the power antenna factory option? If I don't have one, i'll leave it unused?

There's 2 of these hanging down. One on each side of the dash.. Radio FM/AM antennas??

These are labeled interior lighting from previous owner. Looks like 2 to a missing lightbulb and 2 to the dimmer switch. Are they safe to leave unplugged?

Last but not least this 8-pin connector looks good, just missing the red cap the others have. Is it OK to leave it like that?

Any advice would be great!