my right tail light has been a bit of a problem lately. when my right turn signal is on, not only does my turn signal blink, but the rear light that is next to it AND the left light on the trunk lid

I know that my antenna wiring is a mess and is not properly connected, but does that effect my tail lights at all? I also have an issue with my headlights shutting off if my turn signal/ wiper switch is set in high beam mode, and my reverse lights do not come on (I tested the bulbs and checked my fuses too.)
not sure if this has any effect too, but my blow motor fuse keeps blowing (and sometimes melting

)
for some background history about the wiring, my car had euros installed before my purchase (the previous owner yanked the euros and threw some crappy dot lights in) and the wiring for the euros is still under the hood but not connected as far as i can tell.
(sorry for the extreme length) I can see about maybe post up a video and taking some pictures of the wiring if that might help. Thank you for reading and any help I may receive ~ Terran