Hi just got a new deck and my magna didnt come with a radio so no idea what wire is what on the magna i know the deck wires any1 know what wires are what on a 89 TN magna se? help plz lol

Grab a test light and find out!

touch one end to the wire, and one end to ground (car chassis) and then u can tell what wire is ACC and what one is Constant 12V+ cause the little light on the probe will light up...something like $2 from super cheap

use this as a guide, but yeah test out all the wires first. solder and heatshrink if possible...

gluk

And don't forget a 6V CR-V3 or 9V battery to let you know which speaker wires are which and the +ives and -ives :D