You will need a special wire harness. You can get it along with instructions and support at http://www.crutchfield.com/
Where is the radio antenna located on a 2003 Mitsubishi eclipse
No. Worst case scenario is you will have to reprogram any aftermarket Radio/DVD/Stereo.
The Mitsubishi Eclipse radio code is the code that makes your radio work. You need to put this code in any time you disconnect the battery.
install a radio
if your asking if you can put subwoofers on the stock radio then no you have to have an aftermarket radio
yes you can install an aftermarket radio in a GM vehicle that is equiped with a theft lock radio. the radio itsel has the theftlock not the car so you can install any aftermarket radio in the car. There may be some other parts that you may need to install an aftermarket radio such as a dash kit, wiring harness and antenna adaptor. If your vehicle is a newer model with Bose and onstar, you may need an integration kit made by PAC-audio.
Behind the radio
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how do you install a aftermarket radio in 1986 caprice
go to this URL How_do_you_install_aftermarket_radio_in_a_ford_transit
The mitsubishi eclipse has never had a bose stereo your 01 gs came with an infinity stereo, if your car does have one it is because it is aftermarket. To remove it you simply take the 2 screws at the bottom of the face plate that covers the heating and radio then remove the 2 or four depending how big your stereo is and pull it out.
you need to contact a dealer and get the code for your car.