88 mustang radio harness color codes???

Its not hard. From your new radio,you only can hook front or rear. When amp comes on all 6 will play just balance can be change.pink/l blue is right+ and pink/lt pink. Black/white is neg.thats all for speakers. Amp power return is a 14 gauge red wire. Ground 20gauge black. The w/g and purple/w tie together .thats power sound for right side. Than lt green and lite blue/black tie together that is left power sound. Than lt blue /red is dash lites. The stock unit played say 20wpc. Button on eq pushed on would power powersound .so that need remote power. Yellow/black is antenna/radio feed.lt green/yellow is memory feed. If i missed any let me know

Sounds like amp needs just power to get sound.if amplified sound power both tied powersound .hope this helps somebody

Having fun. Tricky. Boostapimp might be able to make sence of this for you. The colors you gave fits with eq. The wires that i said to tie are the 4 positives to speakers when eq was powered. The sound can be changed by eq, loudness i cant answer where it come from? Eq or amp. System without eq wire are different colors.