Is the stock unit able to power up 4 speakers? or only two? reason I ask is that I upgraded my radio and would like to use the stock one in my daily driver honda. And do the harnesses plug right into a 92-95 civic? thanks for the help.

 

What year? My '05 stock radio has four stock speakers with it.

 

the radio is from an 05. I wasnt sure the tweeter ones were able to support bigger speakers.

 

the stock headunits for all years of USA S2000s support four speakers,
but the early cars had no rear speakers or factory installed wiring for them.
However, I don't believe the harnesses are the same for the 92-95 civic.
Here's a link to a writeup I did earlier on how to do it:
https://www.s2ki.com/forums/index.php?showt...0&#entry8858313

 

thank you sir, Just what I was looking for.

 

honda change the plug around 97-98 so it will not be a plug and play.

you still could slice the wires one by one to have it working, i never buy reverse harness or clip, i solder them one by one and heat shrink everything.

there's a very good guide on installer doctor.com

the earily S radio is actuall the same radio from the Si, so you can even use the dimmer switch