Toyota Corolla 1997 I've installed kickers in the rear (KS series to match the front)... had those going for a couple of weeks with no problems. Yesterday i went to install the KS400 series in the front. The first speaker i installed played strong for 10 min or so then suddenly cut-off and hasn't played since. The other door speaker won't play either and neither will the rear speakers. I've reset my aftermarket head unit multiple times but no luck. It's good for 4x50... are the 60w front speakers a problem? I'm stumped. the headunit still has power and the fuse isn't blown.

Question edited for clarity, and add Maker.
Question moved to model category.

1995-97 Toyota Corolla Stereo Wiring

The12Volt https://www.the12volt.com > installbay > stereodetail
1995-97 Toyota Corolla Stereo Wiring ; Ground, Brown ; Illumination, Green ; Dimmer, n/a ; Antenna, Driver's Pillar ; Front Speakers, 5 1/4" Doors.

its the only thing my wife knows how to do, that's the gas tank. theres a fuel door opener on drivers side floor next to front of seat

Check...
1. Loose or broken spark plug cable.
2. Spark plug gap.
3. Leaking of air from cylinder head gasket.

Possible gear noise in the final drive housing?

1999 Toyota Corolla Car Radio Stereo Audio Wiring Diagram
Car Radio Constant 12v+ Wire: Blue/Yellow
Car Radio Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Violet
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White

This indicates a short in one of the speakers, or possibly the speakers are not wired correctly. Please see my tip at http://www.fixya.com/support/r9389300-stereo_says_protect_or_clicks_off_when .
Correct wiring for 95 Corolla is as follows:

1995 Toyota Corolla Wiring harness, Kenwood wire color
Radio Constant 12V+ Wire: Blue/Yellow, yellow
Radio Switched 12V+ Wire: Gray, red
Radio Ground Wire: Brown, black
Radio Illumination Wire: Green, not used by Kenwood--please tape off
Radio Antenna Trigger Wire: Black/Red, blue
Left Front Speaker Wire (+): Pink, white
Left Front Speaker Wire (-): Purple, white/black
Right Front Speaker Wire (+): Light Green, gray
Right Front Speaker Wire (-): Blue, gray/black
Left Rear Speaker Wire (+): Black, green
Left Rear Speaker Wire (-): Yellow, green/black
Right Rear Speaker Wire (+): Red, purple
Right Rear Speaker Wire (-): White , purple/black

its going to be easy to access.near the drivers left knee.

bad ground

Probably on the firewall. It's a small black device with 2 small hoses going to it. About the size of a small box of wooden matches.

must put chains (if you really need them) on all 4 wheels of your all wheel drive car to prevent a speed mis-match between front and rear...a mis-match can destroy the gearboxes over prolonged use. use chains that have many cross links to lessen the effect of any speed mis-match