you have 2 take the inside door panel off & unscrew the two nutlike thinggy's and detatch the little spring and pull off from the outside instalation is the reverse of the former very easy fix!
You will need a special wire harness. You can get it along with instructions and support at http://www.crutchfield.com/
very carefully
Crutchfield sells a kit that allows you to install a single din aftermarket stereo where the pocket under the A/C controls are located.
I just need to figure out how to take my door panels off my car, 2000 Mitsubishi Eclipse, so I can install some new speakers.
Mine did not have. But you can install one if you think you will need it.
Check youtube.com there is a comprehensive video how to.
I am going to help you where no one did for me this is the actual factory service manual your local dealer uses in the repair shop it will answer anything you would want to know. http://www.onlinefreeebooks.net/automotive-machinery-power-equipment-ebooks/mitsubishi/2000-2002-mitsubishi-eclipse-eclipse-spyder-service-manual-pdf.html
go to installdr.com to see how to remove and install a stereo out of any car
If there is a hole: top. Temperature sensor bulb goes towards the engine.
Remove the wiring harness from the back of your 2003 Mitsubishi Eclipse alternator. Loosen the alternator tensioner bolt. Remove the alternator belt. Remove the alternator retaining bolts. Reverse the process to install the new alternator.
You can probably purchase an aftermarket disc brake system, and then hire a mechanic to install it.
Six-year the oil pressure gauge for your 1999 Mitsubishi eclipse with the retaining screws. Connect the oil pressure gauge wiring harness.