shawnlexus

I know this may be in wrong category but sc guys have done this a hundred times.

I am installing an after-market head unit in my 92 lexus sc400. I am running into a few problems. I have the cd player turned on, so grounded, illumination and power. I cannot not seem to figure how to wire up speakers, all or the diy's do not have what color the speakers are? THe diy's are only to install after-market head unit and use original sub and amp. I am installing new head unit, new amp, and new sub. here is the diy install thread

https://www.clublexus.com/forums/lexu...b-working.html

but it does not lead me to which wires are for speakers and where the grounds are for each, also my new head unit has a ground for each speaker, do i need to ground left rear, left front, right rear, and right front? I would really appreciate if someone could send me a link for wiring diagram for speakers, and if i need to ground each speaker like my new head unit is asking for?