wire colors on radio need help

i have a 91 town car with the jbl amp radio looking to get color
codes i tore 2 wires off by mistake on part that attaches to radio .
when i removed radio moved it to far and tore off the blue wires there
are 2 attached together and think other one is orange need to solder
them back but wanted to know if anyone knows which was first and which
was second and is there a way i can hook antenna up seperately since i
use xm most of the time and dont need the power antenna up when radio
is on my 88 town car had a seperate switch i remember

also reason was checking radio i think amplifier went get no sound out
of speakers does anyone know where i can get one besides ebay.

thanks much

roger